Wiederhecker, Gustavo S; Alegre, Thiago Mayer P; Dainese, Paulo; Frateschi, Newton C
Towards fabless optomechanics: enhancing light and sound interaction in a CMOS-complatible platform Proceedings Article
In: Latin America Optics and Photonics Conference, pp. W3E.2, Optical Society of America, 2018.
@inproceedings{Wiederhecker:18,
title = {Towards fabless optomechanics: enhancing light and sound interaction in a CMOS-complatible platform},
author = {Gustavo S Wiederhecker and Thiago Mayer P Alegre and Paulo Dainese and Newton C Frateschi},
url = {http://www.osapublishing.org/abstract.cfm?URI=LAOP-2018-W3E.2},
doi = {10.1364/LAOP.2018.W3E.2},
year = {2018},
date = {2018-01-01},
booktitle = {Latin America Optics and Photonics Conference},
journal = {Latin America Optics and Photonics Conference},
pages = {W3E.2},
publisher = {Optical Society of America},
abstract = {In this talk we will review our recent efforts in enabling strong interaction between light and mechanical modes using a mixed foundry and in-house fabrication approach.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Santos, Laís F; Inga, Marvyn; Soares, Jorge H; Alegre, Mayer T P; Wiederhecker, G S
Dispersion Control in Silicon Oxide Wedge Microdisks Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. JTu2A.111, Optical Society of America, 2018.
@inproceedings{Santos:18,
title = {Dispersion Control in Silicon Oxide Wedge Microdisks},
author = {Laís F Santos and Marvyn Inga and Jorge H Soares and Mayer T P Alegre and G S Wiederhecker},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2018-JTu2A.111},
doi = {10.1364/CLEO_AT.2018.JTu2A.111},
year = {2018},
date = {2018-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {JTu2A.111},
publisher = {Optical Society of America},
abstract = {We demonstrate the generation of optical frequency combs by engineering the dispersion of a small radius (100 microns) thin wedge microcavity. The phase-matching of the excitation taper is also employed to inhibit avoided-crossings.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Luiz, Gustavo O; Benevides, Rodrigo S; Santos, Felipe G S; Espinel, Yovanny A V; Alegre, Thiago Mayer P; Wiederhecker, Gustavo S
Efficient anchor loss suppression in coupled near-field optomechanical resonators Journal Article
In: Opt. Express, vol. 25, no. 25, pp. 31347–31361, 2017.
@article{Luiz:17,
title = {Efficient anchor loss suppression in coupled near-field optomechanical resonators},
author = {Gustavo O Luiz and Rodrigo S Benevides and Felipe G S Santos and Yovanny A V Espinel and Thiago Mayer P Alegre and Gustavo S Wiederhecker},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-25-25-31347},
doi = {10.1364/OE.25.031347},
year = {2017},
date = {2017-12-01},
journal = {Opt. Express},
volume = {25},
number = {25},
pages = {31347--31361},
publisher = {OSA},
abstract = {Elastic dissipation through radiation towards the substrate is a major loss channel in micro- and nanomechanical resonators. Engineering the coupling of these resonators with optical cavities further complicates and constrains the design of low-loss optomechanical devices. In this work we rely on the coherent cancellation of mechanical radiation to demonstrate material and surface absorption limited silicon near-field optomechanical resonators oscillating at tens of MHz. The effectiveness of our dissipation suppression scheme is investigated at room and cryogenic temperatures. While at room temperature we can reach a maximum quality factor of 7.61k (fQ-product of the order of 1011 Hz), at 22 K the quality factor increases to 37k, resulting in a fQ-product of 2 × 1012 Hz.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Davis, Jordan A; Grieco, Andrew; Souza, Mario C M M; Frateschi, Newton C; Fainman, Yeshaiahu
Hybrid multimode resonators based on grating-assisted counter-directional couplers Journal Article
In: OPTICS EXPRESS, vol. 25, no. 14, pp. 16484-16490, 2017, ISSN: 1094-4087.
@article{ISI:000407815100078,
title = {Hybrid multimode resonators based on grating-assisted
counter-directional couplers},
author = {Jordan A Davis and Andrew Grieco and Mario C M M Souza and Newton C Frateschi and Yeshaiahu Fainman},
doi = {10.1364/OE.25.016484},
issn = {1094-4087},
year = {2017},
date = {2017-07-01},
journal = {OPTICS EXPRESS},
volume = {25},
number = {14},
pages = {16484-16490},
publisher = {OPTICAL SOC AMER},
address = {2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA},
abstract = {Research thrusts in silicon photonics are developing control operations
using higher order waveguide modes for next generation high-bandwidth
communication systems. In this context, devices allowing optical
processing of multiple waveguide modes can reduce architecture
complexity and enable flexible on-chip networks. We propose and
demonstrate a hybrid resonator dually resonant at the 1st and 2nd order
modes of a silicon waveguide. We observe 8 dB extinction ratio and modal
conversion range of 20 nm for the 1st order quasi-TE mode input. (C)
2017 Optical Society of America},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
using higher order waveguide modes for next generation high-bandwidth
communication systems. In this context, devices allowing optical
processing of multiple waveguide modes can reduce architecture
complexity and enable flexible on-chip networks. We propose and
demonstrate a hybrid resonator dually resonant at the 1st and 2nd order
modes of a silicon waveguide. We observe 8 dB extinction ratio and modal
conversion range of 20 nm for the 1st order quasi-TE mode input. (C)
2017 Optical Society of America
Espinel, Y. A. V.; Santos, F. G. S.; Luiz, G. O.; Alegre, T. P. Mayer; Wiederhecker, G. S.
Brillouin Optomechanics in Coupled Silicon Microcavities Journal Article
In: Scientific Reports, vol. 7, pp. 43423 EP -, 2017.
@article{Espinel:2017aa,
title = {Brillouin Optomechanics in Coupled Silicon Microcavities},
author = {Espinel, Y. A. V. and Santos, F. G. S. and Luiz, G. O. and Alegre, T. P. Mayer and Wiederhecker, G. S.},
url = {http://dx.doi.org/10.1038/srep43423
https://arxiv.org/abs/1609.09509},
year = {2017},
date = {2017-03-06},
journal = {Scientific Reports},
volume = {7},
pages = {43423 EP -},
publisher = {The Author(s) SN -},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Santos, Felipe G. S.; Espinel, Yovanny A. V.; Luiz, Gustavo O.; Benevides, Rodrigo S.; Wiederhecker, Gustavo S.; Alegre, Thiago P. Mayer
Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator Journal Article
In: Opt. Express, vol. 25, no. 2, pp. 508–529, 2017.
@article{Santos:17,
title = {Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator},
author = {Felipe G. S. Santos and Yovanny A. V. Espinel and Gustavo O. Luiz and Rodrigo S. Benevides and Gustavo S. Wiederhecker and Thiago P. Mayer Alegre},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-25-2-508
https://arxiv.org/abs/1605.06318},
doi = {10.1364/OE.25.000508},
year = {2017},
date = {2017-01-01},
journal = {Opt. Express},
volume = {25},
number = {2},
pages = {508--529},
publisher = {OSA},
abstract = {Optomechanical cavities have proven to be an exceptional tool to explore fundamental and applied aspects of the interaction between mechanical and optical waves. Here we demonstrate a novel optomechanical cavity based on a disk with a radial mechanical bandgap. This design confines light and mechanical waves through distinct physical mechanisms which allows for independent control of the mechanical and optical properties. Simulations foresee an optomechanical coupling rate g0 reaching 2π × 100 kHz for mechanical frequencies around 5 GHz as well as anchor loss suppression of 60 dB. Our device design is not limited by unique material properties and could be easily adapted to allow for large optomechanical coupling and high mechanical quality factors with other promising materials. Finally, our devices were fabricated in a commercial silicon photonics facility, demonstrating g0/2π $=$ 23 kHz for mechanical modes with frequencies around 2 GHz and mechanical Q-factors as high as 2300 at room temperature, also showing that our approach can be easily scalable and useful as a new platform for multimode optomechanics.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Benevides, Rodrigo; Santos, Felipe G. S.; Luiz, Gustavo O.; Wiederhecker, Gustavo S.; Alegre, Thiago P. Mayer
Ultrahigh-Q optomechanical crystal cavities fabricated in a CMOS foundry Journal Article
In: Scientific Reports, vol. 7, no. 1, pp. 2491, 2017, ISBN: 2045-2322.
@article{Benevides:2017aa,
title = {Ultrahigh-Q optomechanical crystal cavities fabricated in a CMOS foundry},
author = {Benevides, Rodrigo and Santos, Felipe G. S. and Luiz, Gustavo O. and Wiederhecker, Gustavo S. and Alegre, Thiago P. Mayer},
url = {http://dx.doi.org/10.1038/s41598-017-02515-4},
doi = {10.1038/s41598-017-02515-4},
isbn = {2045-2322},
year = {2017},
date = {2017-01-01},
journal = {Scientific Reports},
volume = {7},
number = {1},
pages = {2491},
abstract = {Photonic crystals use periodic structures to create frequency regions where the optical wave propagation is forbidden, which allows the creation and integration of complex optical functionalities in small footprint devices. Such strategy has also been successfully applied to confine mechanical waves and to explore their interaction with light in the so-called optomechanical cavities. Because of their challenging design, these cavities are traditionally fabricated using dedicated high-resolution electron-beam lithography tools that are inherently slow, limiting this solution to small-scale or research applications. Here we show how to overcome this problem by using a deep-UV photolithography process to fabricate optomechanical crystals in a commercial CMOS foundry. We show that a careful design of the photonic crystals can withstand the limitations of the photolithography process, producing cavities with measured intrinsic optical quality factors as high as Q i = (1.21 $pm$0.02) ×106. Optomechanical crystals are also created using phononic crystals to tightly confine the GHz sound waves within the optical cavity, resulting in a measured vacuum optomechanical coupling rate of g 0 = 2π×(91 $pm$4) kHz. Efficient sideband cooling and amplification are also demonstrated since these cavities are in the resolved sideband regime. Further improvements in the design and fabrication process suggest that commercial foundry-based optomechanical cavities could be used for quantum ground-state cooling.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Luiz, Gustavo O; Alegre, Thiago P M; Wiederhecker, Gustavo S
Synchronization of thermal-carrier oscillations in coupled silicon microcavities Proceedings Article
In: 2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), IEEE IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2017, ISSN: 2160-9020, (Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, MAY 14-19, 2017).
@inproceedings{ISI:000427296201163,
title = {Synchronization of thermal-carrier oscillations in coupled silicon
microcavities},
author = {Gustavo O Luiz and Thiago P M Alegre and Gustavo S Wiederhecker},
issn = {2160-9020},
year = {2017},
date = {2017-01-01},
booktitle = {2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)},
publisher = {IEEE},
address = {345 E 47TH ST, NEW YORK, NY 10017 USA},
organization = {IEEE},
series = {Conference on Lasers and Electro-Optics},
abstract = {We report on the synchronization of thermal-carrier self-sustaining
oscillations in coupled silicon microdisks. Time and frequency domain
signatures of synchronization are observed.},
note = {Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, MAY 14-19,
2017},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
oscillations in coupled silicon microdisks. Time and frequency domain
signatures of synchronization are observed.
Santos, Felipe G S
Cavity optomechanics in silicon disks and nanostructured disks PhD Thesis
2017.
@phdthesis{Santos:2017ta,
title = {Cavity optomechanics in silicon disks and nanostructured disks},
author = {Felipe G S Santos},
url = {http://repositorio.unicamp.br/jspui/handle/REPOSIP/325359},
year = {2017},
date = {2017-01-01},
abstract = {A optomec^anica de cavidades se transformou numa área de estudos muito rica, com aplicac c~oes em interfer^ometros de ondas gravitacionais, fundamentos de mec^anica qu^antica, simulac c~oes qu^anticas, sincronizac c~ao, filtros ópticos reconfiguráveis por luz, memórias ópticastextquestiondownentre diversas outras. Dos muitos dispositivos relatados na literatura, microcavidades integradas em chips s~ao uma alternativa promissora para o estudo de efeitos din^amicos devido `a interac c~ao entre ondas ópticas e ondas mec^anicas confinadas. Entre as microcavidades, discos e cristais optomec^anicos (baseados em confinamento por bandgaps fot^onico e fon^onico) s~ao dispositivos especialmente promissores e frequentemente estudados, cada um tendo vantagens 'unicas. Nesta tese, unimos a versatilidade dos discos ao confinamento por bandgap numa nova proposta de dispositivo optomec^anico, o bullseye (ingl^es para älvo"). De um lado, produzimos conhecimento local em fabricac c~ao e caracterizac c~ao de discos optomec^anicos de sil'icio, chegando a larguras de linha óptica menores que 1 GHz (fator de qualidade da ordem de 105). De outro, mostramos que o bullseye pode superar algumas limitac c~oes dos discos simples com o intuito de alcanc car o chamado regime de banda lateral resolvida, no qual a frequ^encia de resson^ancia mec^anica é maior que a largura de linha óptica. A partir de simulac c~oes pelo método dos elementos finitos, compreendemos em profundidade as propriedades optomec^anicas do bullseye, prevendo modos mec^anicos de alta frequ^encia com taxa de acoplamento optomec^anico (medida do desvio da frequ^encia óptica devido a flutuac c~oes do estado fundamental mec^anico) de até 200 kHz textquestiondown valor igual ao dispositivos considerados estado-da-arte. Por fim, demonstramos experimentalmente as propriedades optomec^anicas do bullseye em amostras fabricadas com processos industriais CMOS, um resultado importante que abre o caminho para aplicac c~oes massivas, tanto comerciais quanto em pesquisa, de cavidades optomec^anicas},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
Amili, A El; Souza, M C M M; Vallini, F; Frateschi, N C; Fainman, Y
Magnetically controllable silicon microring with ferrofluid cladding Journal Article
In: OPTICS LETTERS, vol. 41, no. 23, pp. 5576-5579, 2016, ISSN: 0146-9592.
@article{ISI:000389654000042,
title = {Magnetically controllable silicon microring with ferrofluid cladding},
author = {A El Amili and M C M M Souza and F Vallini and N C Frateschi and Y Fainman},
doi = {10.1364/OL.41.005576},
issn = {0146-9592},
year = {2016},
date = {2016-12-01},
journal = {OPTICS LETTERS},
volume = {41},
number = {23},
pages = {5576-5579},
publisher = {OPTICAL SOC AMER},
address = {2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA},
abstract = {We experimentally investigate the application of magnetic fluids (MFs)
on integrated silicon photonics. Using a ferro-fluid-clad silicon
microring resonator, we demonstrate active control of resonances by
applying an external magnetic field. Relatively high loaded quality
factors on the order of 6000 are achieved, despite the optical losses
introduced by the magnetic nanoparticles. We demonstrate resonance
shifts of 185 pm in response to a 110 Oe strong magnetic field,
corresponding to an overall refractive index change of -3.2 x 10(-3) for
the cladding MF. The combination of MFs and integrated photonics could
potentially lead to the development of magnetically controllable optical
devices and ultra-compact cost-effective magnetic field sensors. (C)
2016 Optical Society of America},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
on integrated silicon photonics. Using a ferro-fluid-clad silicon
microring resonator, we demonstrate active control of resonances by
applying an external magnetic field. Relatively high loaded quality
factors on the order of 6000 are achieved, despite the optical losses
introduced by the magnetic nanoparticles. We demonstrate resonance
shifts of 185 pm in response to a 110 Oe strong magnetic field,
corresponding to an overall refractive index change of -3.2 x 10(-3) for
the cladding MF. The combination of MFs and integrated photonics could
potentially lead to the development of magnetically controllable optical
devices and ultra-compact cost-effective magnetic field sensors. (C)
2016 Optical Society of America
Souza, Mario C. M. M.; Rezende, Guilherme F. M.; Barea, Luis A. M.; Wiederhecker, Gustavo S.; Frateschi, Newton C.
Modeling quasi-dark states with temporal coupled-mode theory Journal Article
In: Opt. Express, vol. 24, no. 17, pp. 18960–18972, 2016.
@article{Souza:2016aa,
title = {Modeling quasi-dark states with temporal coupled-mode theory},
author = {Mario C. M. M. Souza and Guilherme F. M. Rezende and Luis A. M. Barea and Gustavo S. Wiederhecker and Newton C. Frateschi},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-24-17-18960},
doi = {10.1364/OE.24.018960},
year = {2016},
date = {2016-08-01},
journal = {Opt. Express},
volume = {24},
number = {17},
pages = {18960--18972},
publisher = {OSA},
abstract = {Coupled resonators are commonly used to achieve tailored spectral responses and allow novel functionalities in a broad range of applications. The Temporal Coupled-Mode Theory (TCMT) provides a simple and general tool that is widely used to model these devices. Relying on TCMT to model coupled resonators might however be misleading in some circumstances due to the lumped-element nature of the model. In this article, we report an important limitation of TCMT related to the prediction of dark states. Studying a coupled system composed of three microring resonators, we demonstrate that TCMT predicts the existence of a dark state that is in disagreement with experimental observations and with the more general results obtained with the Transfer Matrix Method (TMM) and the Finite-Difference Time-Domain (FDTD) simulations. We identify the limitation in the TCMT model to be related to the mechanism of excitation/decay of the supermodes and we propose a correction that effectively reconciles the model with expected results. Our discussion based on coupled microring resonators can be useful for other electromagnetic resonant systems due to the generality and far-reach of the TCMT formalism.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Soares, Jorge H.; Santos, Felipe G.; Fujii, Lais; Wiederhecker, Gustavo S.; Alegre, Thiago P.
Tunable third-harmonic generation in silicon oxide wedge microcavities Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. STh3P.5, Optical Society of America, 2016.
@inproceedings{Soares:2016aa,
title = {Tunable third-harmonic generation in silicon oxide wedge microcavities},
author = {Jorge H. Soares and Felipe G. Santos and Lais Fujii and Gustavo S. Wiederhecker and Thiago P. Alegre},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-STh3P.5},
doi = {10.1364/CLEO_SI.2016.STh3P.5},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {STh3P.5},
publisher = {Optical Society of America},
abstract = {We demonstrate tunable third-harmonic generation (THG) using a multimode microcavity. The silicon-oxide wedge-resonator is pumped around 1550 nm telecom band and generates tunable THG (512-520 nm) with a collected power efficiency of 10-5.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
da Silva Benevides, Rodrigo; de Oliveira Luiz, Gustavo; Santos, Felipe G.; Wiederhecker, Gustavo; Alegre, Thiago P.
Optomechanical Oscillators Fabricated in a CMOS-compatible Foundry Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. JTh2A.99, Optical Society of America, 2016.
@inproceedings{daSilvaBenevides:16,
title = {Optomechanical Oscillators Fabricated in a CMOS-compatible Foundry},
author = {Rodrigo da Silva Benevides and Gustavo de Oliveira Luiz and Felipe G. Santos and Gustavo Wiederhecker and Thiago P. Alegre},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-JTh2A.99},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {JTh2A.99},
publisher = {Optical Society of America},
abstract = {We demonstrate self-sustained mechanical oscillations at room temperature and ambient pressure in a silicon photonic crystal slot-cavity fabricated by a CMOS-Foundry. Optical quality factor as high as Qopt$=$4 texttimes 105 and an optomechanical coupling rate of g0/2$pi$$=$76 kHz are observed.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Florez, Omar; Jarschel, Paulo; Espinel, Yovanny A.; Cordeiro, Cristiano M.; Alegre, Thiago P. Mayer; Wiederhecker, Gustavo S.; Dainese, Paulo C.
Theory and Observation of the Brillouin Scattering Self-Cancellation Proceedings Article
In: Latin America Optics and Photonics Conference, pp. LTu5C.1, Optical Society of America, 2016.
@inproceedings{Florez:16,
title = {Theory and Observation of the Brillouin Scattering Self-Cancellation},
author = {Omar Florez and Paulo Jarschel and Yovanny A. Espinel and Cristiano M. Cordeiro and Thiago P. Mayer Alegre and Gustavo S. Wiederhecker and Paulo C. Dainese},
url = {http://www.osapublishing.org/abstract.cfm?URI=LAOP-2016-LTu5C.1},
doi = {10.1364/LAOP.2016.LTu5C.1},
year = {2016},
date = {2016-01-01},
booktitle = {Latin America Optics and Photonics Conference},
journal = {Latin America Optics and Photonics Conference},
pages = {LTu5C.1},
publisher = {Optical Society of America},
abstract = {The Brillouin scattering self-cancellation effect arising from the interplay between the photo-elastic and moving-boundary effects is reviewed. Our recent demonstration of this effect for the fundamental Rayleigh acoustic mode in silica nanowires is also discussed.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Souza, Mario C.; Rezende, Guilherme; Barea, Luis; Wiederhecker, Gustavo; Frateschi, Newton
Modifying Coupled Mode Theory to model quasi-dark states in coupled resonators Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. JTh2A.94, Optical Society of America, 2016.
@inproceedings{Souza:2016ab,
title = {Modifying Coupled Mode Theory to model quasi-dark states in coupled resonators},
author = {Mario C. Souza and Guilherme Rezende and Luis Barea and Gustavo Wiederhecker and Newton Frateschi},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-JTh2A.94},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {JTh2A.94},
publisher = {Optical Society of America},
abstract = {We show that Coupled Mode Theory incorrectly predicts a dark state for a coupled resonator design and we propose a correction that effectively reconciles it with results obtained experimentally and through the Transfer Matrix Method.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
de Oliveira Luiz, Gustavo; Santos, Felipe G.; da Silva Benevides, Rodrigo; Espinel, Yovanny; Alegre, Thiago P.; Wiederhecker, Gustavo
Material limited high-Q mechanical paddle-resonator Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. STu4E.2, Optical Society of America, 2016.
@inproceedings{Oliveira-Luiz:2016aa,
title = {Material limited high-Q mechanical paddle-resonator},
author = {Gustavo de Oliveira Luiz and Felipe G. Santos and Rodrigo da Silva Benevides and Yovanny Espinel and Thiago P. Alegre and Gustavo Wiederhecker},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-STu4E.2},
doi = {10.1364/CLEO_SI.2016.STu4E.2},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {STu4E.2},
publisher = {Optical Society of America},
abstract = {We used destructive interference of elastic waves to obtain material limited high quality factor micro mechanical devices probed with an optical cavity. Mechanical quality factors as high as 28texttimes103 were measured.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Florez, Omar; Jarschel, Paulo F.; Espinel, Yovanny A.; Cordeiro, Cristiano M.; Alegre, Thiago P.; Wiederhecker, Gustavo; Dainese, Paulo C.
Demonstration of Brillouin Scattering Self-Cancellation Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. STu3E.6, Optical Society of America, 2016.
@inproceedings{Florez:2016aa,
title = {Demonstration of Brillouin Scattering Self-Cancellation},
author = {Omar Florez and Paulo F. Jarschel and Yovanny A. Espinel and Cristiano M. Cordeiro and Thiago P. Alegre and Gustavo Wiederhecker and Paulo C. Dainese},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-STu3E.6},
doi = {10.1364/CLEO_SI.2016.STu3E.6},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {STu3E.6},
publisher = {Optical Society of America},
abstract = {We experimentally demonstrate the cancellation of Brillouin scattering by engineering a sub-wavelength diameter silica wire with exactly opposite photo-elastic and moving-boundary contributions.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Florez, O; Jarschel, P F; Espinel, Y A V; Cordeiro, C M B; Mayer Alegre, T P; Wiederhecker, G S; Dainese, P
Brillouin scattering self-cancellation Journal Article
In: Nature Communications, vol. 7, pp. 11759, 2016.
@article{Florez:2016iz,
title = {Brillouin scattering self-cancellation},
author = {Florez, O and Jarschel, P F and Espinel, Y A V and Cordeiro, C M B and Mayer Alegre, T P and Wiederhecker, G S and Dainese, P},
url = {http://www.nature.com/doifinder/10.1038/ncomms11759
https://arxiv.org/abs/1601.05248},
doi = {10.1038/ncomms11759},
year = {2016},
date = {2016-01-01},
journal = {Nature Communications},
volume = {7},
pages = {11759},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Santos, Felipe G.; Espinel, Yovanny; de Oliveira Luiz, Gustavo; da Silva Benevides, Rodrigo; Wiederhecker, Gustavo; Alegre, Thiago P.
Bullseye Optomechanical Resonator Proceedings Article
In: Conference on Lasers and Electro-Optics, pp. STu4E.4, Optical Society of America, 2016.
@inproceedings{Santos:2016aa,
title = {Bullseye Optomechanical Resonator},
author = {Felipe G. Santos and Yovanny Espinel and Gustavo de Oliveira Luiz and Rodrigo da Silva Benevides and Gustavo Wiederhecker and Thiago P. Alegre},
url = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2016-STu4E.4},
doi = {10.1364/CLEO_SI.2016.STu4E.4},
year = {2016},
date = {2016-01-01},
booktitle = {Conference on Lasers and Electro-Optics},
journal = {Conference on Lasers and Electro-Optics},
pages = {STu4E.4},
publisher = {Optical Society of America},
abstract = {We demonstrate an optomechanical resonator that can tightly confine phonons through a circular phononic shield. Our design allows for independently trimmable long living optical and mechanical modes with large optomechanical coupling.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Cirino, Giuseppe A; Barea, Luis A; von Zuben, Antonio A; L'hermite, Herve; Beche, Bruno; Sagazan, Olivier De; Frateschi, Newton; M-Brahim, Tayeb
Simulation and Fabrication of Silicon Nitride Microring Resonator by DUV Lithography Proceedings Article
In: 2016 31ST SYMPOSIUM ON MICROELECTRONICS TECHNOLOGY AND DEVICES (SBMICRO), IEEE; SBA; Brazilian Comp Soc; Electron Devices Soc; ECS; Departamento Ciencia Computacao; Departamento Engenharia Eletrica; Departamento Fisica; Univ Fed Minas Gerais, Escola Engenharia; PPGEE; DELT; BNDES; BRASIL GOVERNO FED; IFIP; CAS; Sociedade Brasileira Fisica; IEEE Instrumentat & Measurement Soc; Assoc Comp Machinery; IEEE Council Elect Design Automat; FAPEMIG; Conselho Nacional Desenvolvimento Cientifico Tecnologico; CAPES; Unitec semicondutores IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016, ISBN: 978-1-5090-2788-0, (31st Symposium on Microelectronics Technology and Devices (SBMicro), Belo Horizonte, BRAZIL, AUG 29-SEP 03, 2016).
@inproceedings{ISI:000392469000033,
title = {Simulation and Fabrication of Silicon Nitride Microring Resonator by DUV
Lithography},
author = {Giuseppe A Cirino and Luis A Barea and Antonio A von Zuben and Herve L'hermite and Bruno Beche and Olivier De Sagazan and Newton Frateschi and Tayeb M-Brahim},
isbn = {978-1-5090-2788-0},
year = {2016},
date = {2016-01-01},
booktitle = {2016 31ST SYMPOSIUM ON MICROELECTRONICS TECHNOLOGY AND DEVICES (SBMICRO)},
publisher = {IEEE},
address = {345 E 47TH ST, NEW YORK, NY 10017 USA},
organization = {IEEE; SBA; Brazilian Comp Soc; Electron Devices Soc; ECS; Departamento
Ciencia Computacao; Departamento Engenharia Eletrica; Departamento
Fisica; Univ Fed Minas Gerais, Escola Engenharia; PPGEE; DELT; BNDES;
BRASIL GOVERNO FED; IFIP; CAS; Sociedade Brasileira Fisica; IEEE
Instrumentat & Measurement Soc; Assoc Comp Machinery; IEEE Council
Elect Design Automat; FAPEMIG; Conselho Nacional Desenvolvimento
Cientifico Tecnologico; CAPES; Unitec semicondutores},
abstract = {This work reports the design and fabrication of silicon nitride-based
microresonators by employing DUV optical lithography and ICP-RIE plasma
etching. Microring devices with high Q factors provide high sensitivity
and low detection limit, enabling their use in biochemical sensing
applications. With these properties, the devices can be used to detect
and quantify the biomolecules present in a homogeneous solution, by
detecting an effective refractive index change, without using
fluorescent labels.},
note = {31st Symposium on Microelectronics Technology and Devices (SBMicro),
Belo Horizonte, BRAZIL, AUG 29-SEP 03, 2016},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
microresonators by employing DUV optical lithography and ICP-RIE plasma
etching. Microring devices with high Q factors provide high sensitivity
and low detection limit, enabling their use in biochemical sensing
applications. With these properties, the devices can be used to detect
and quantify the biomolecules present in a homogeneous solution, by
detecting an effective refractive index change, without using
fluorescent labels.
2014
Conferences
Souza, M. C. M. M.; Barea, L. A. M.; Vallini, F.; Rezende, G. F. M.; Wiederhecker, G. S.; Frateschi, N. C.
Low-power four-channel wavelength multicasting in embedded microring resonators Conference
2014.
@conference{Souza2014,
title = {Low-power four-channel wavelength multicasting in embedded microring resonators},
author = {Souza, M.C.M.M. and Barea, L.A.M. and Vallini, F. and Rezende, G.F.M. and Wiederhecker, G.S. and Frateschi, N.C.},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84906872048&partnerID=40&md5=73603e4e63a74ea4e49bd3a060bd7e21},
year = {2014},
date = {2014-01-01},
journal = {Optics InfoBase Conference Papers},
abstract = {We demonstrate four-channel all-optical wavelength multicasting using only 1 mW of pump power and channel spacing of 40-60 GHz. Our device is based on a compact embedded microring design fabricated on a scalable SOI platform. copyright 2014 OSA.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Cirino, G. A. a; Montagnoli, A. N. a; Frateschi, N. C. b
Two-dimensional diffraction grating fabricated by maskless lithography Conference
2014.
@conference{Cirino2014,
title = {Two-dimensional diffraction grating fabricated by maskless lithography},
author = {Cirino, G.A.a and Montagnoli, A.N.a and Frateschi, N.C.b},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84912128126&partnerID=40&md5=fade1deb6521172cb5be18f44d35b1fc},
doi = {10.1109/SBMicro.2014.6940083},
year = {2014},
date = {2014-01-01},
journal = {2014 29th Symposium on Microelectronics Technology and Devices: Chip in Aracaju, SBMicro 2014},
abstract = {This work presents the fabrication of a two-dimensional diffraction grating with light phase modulation. The device was designed by employing the Iterative Fourier Transform Algorithm and fabricated by maskless direct laser writing system. Optical characterization of the diffraction pattern shown a good matching between the fabricated device and its design. copyright 2014 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Jarschel, P. F.; Souza, M. C. M. M.; Von Zuben, A. A. G.; Ramos, A. C.; Merlo, R. B.; Frateschi, N. C.
Enabling III-V integrated photonics with Er-doped Al2O3 films Conference
2014.
@conference{Jarschel2014,
title = {Enabling III-V integrated photonics with Er-doped Al2O3 films},
author = {Jarschel, P.F. and Souza, M.C.M.M. and Von Zuben, A.A.G. and Ramos, A.C. and Merlo, R.B. and Frateschi, N.C.},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84912096021&partnerID=40&md5=cfb8c09774019dbd7acc424d7ad3b907},
doi = {10.1109/SBMicro.2014.6940104},
year = {2014},
date = {2014-01-01},
journal = {2014 29th Symposium on Microelectronics Technology and Devices: Chip in Aracaju, SBMicro 2014},
abstract = {We describe the integration of erbium-doped Al2O3 material with InGaAs/GaAs quantum well lasers emitting at 980 nm, demonstrating the possibility of integrating III-V based pumping lasers and materials suitable for optical amplification and planar photonics. Combining Er-doped materials with III-V compounds is challenging since ion activation usually requires high temperature annealing. In order to demonstrate the compatibility of the two material systems we fabricated laser samples using Er-doped Al2O3 films as insulating material. We compare annealed (800$,^circ$C) and non-annealed devices and show that laser performance is not affected by the high-temperature annealing. copyright 2014 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Barea, L. A. M.; Souza, M. C. M. M.; Rezende, G. F. M.; Frateschi, N. C.
Photonic molecules for optical signal processing Conference
2014.
@conference{Barea201454,
title = {Photonic molecules for optical signal processing},
author = {Barea, L.A.M. and Souza, M.C.M.M. and Rezende, G.F.M. and Frateschi, N.C.},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84921264357&partnerID=40&md5=6c350094daa70a36ecd4b5cb8f7fd069},
doi = {10.1109/IPCon.2014.6995206},
year = {2014},
date = {2014-01-01},
journal = {2014 IEEE Photonics Conference, IPC 2014},
pages = {54-55},
abstract = {We demonstrate how CMOS compatible photonic molecules (PM) can break the fundamental interdependence among quality factor (Q), channel spacing and size of microring resonators. Different PM architectures are presented for efficient and compact optical signal processing. copyright 2014 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Shane, J. a; Gu, Q. a; Vallini, F. b; Wingad, B. a; Smalley, J. S. T. a; Frateschi, N. C. b; Fainman, Y. a
Thermal considerations in electrically-pumped metallo-dielectric nanolasers Conference
vol. 8980, 2014.
@conference{Shane2014,
title = {Thermal considerations in electrically-pumped metallo-dielectric nanolasers},
author = {Shane, J.a and Gu, Q.a and Vallini, F.b and Wingad, B.a and Smalley, J.S.T.a and Frateschi, N.C.b and Fainman, Y.a},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84901799111&partnerID=40&md5=9e0b7466f3ad94b8b41e631dc8381f18},
doi = {10.1117/12.2057412},
year = {2014},
date = {2014-01-01},
journal = {Proceedings of SPIE - The International Society for Optical Engineering},
volume = {8980},
abstract = {Metal nanocavity-based lasers show promise for dense integration in nanophotonic devices, thanks to their compact size and lack of crosstalk. Thermal considerations in these devices have been largely overlooked in design, despite the importance of self-heating and heat dissipation to device performance. We discuss the sources of self-heating in electrically-pumped wavelength-scale nanolasers, and the incorporation of these heat sources into a heat dissipation model to calculate laser operating temperature. We apply this thermal model to an example electrically-pumped nanolaser operating at room temperature. copyright 2014 SPIE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Gu, Q. a; Shane, J. a; Vallini, F. a; Wingad, B. a; Smalley, J. S. T. a; Frateschi, N. C. b; Fainman, Y. a
Electrically pumped metallo-dielectric pedestal nanolasers with amorphous Al2O3 shield Conference
2014.
@conference{Gu2014,
title = {Electrically pumped metallo-dielectric pedestal nanolasers with amorphous Al2O3 shield},
author = {Gu, Q.a and Shane, J.a and Vallini, F.a and Wingad, B.a and Smalley, J.S.T.a and Frateschi, N.C.b and Fainman, Y.a},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84906074826&partnerID=40&md5=9ac0956ce95032736c698c849f049950},
year = {2014},
date = {2014-01-01},
journal = {Optics InfoBase Conference Papers},
abstract = {We implement amorphous-Al2O3 as a thermally-conductive shield in metallo-dielectric nanolasers, and demonstrate an electrically pumped device. Joint consideration of various design parameters reveals that this design allows the laser to dissipate heat through its shield. copyright 2014 OSA.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
A.R. Do Nascimento, Jr. a; Manera, L. T. a b; Diniz, J. A. a b; Silva, A. R. a; Dos Santos, M. V. P. d; S. Arismar Cerqueira, Jr. c; Barea, L. A. M. d; Frateschi, N. C. d
2014.
@conference{DoNascimento2014,
title = {Silicon nitride for nonlinear optics applications in the telecommunications C-band deposited by ECR-CVD},
author = {Do Nascimento, A.R., Jr.a and Manera, L.T.a b and Diniz, J.A.a b and Silva, A.R.a and Dos Santos, M.V.P.d and Arismar Cerqueira, S., Jr.c and Barea, L.A.M.d and Frateschi, N.C.d},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84912062536&partnerID=40&md5=4d1f68fa400e2b84d7b198819b63ad6b},
doi = {10.1109/SBMicro.2014.6940088},
year = {2014},
date = {2014-01-01},
journal = {2014 29th Symposium on Microelectronics Technology and Devices: Chip in Aracaju, SBMicro 2014},
abstract = {Silicon nitride films deposited by low-pressure electron cyclotron resonance plasma enhanced chemical vapor deposition (ECR-CVD) at room temperature are proposed for nonlinear optics applications in the telecommunications C-band. Numerical simulations were performed to determine the relationship between refractive index and the waveguide minimum size in order to have the zero dispersion point at 1.55 μm. Silicon nitride films with large thickness, low roughness and high refractive index were obtained by varying deposition parameters, such as gas pressure (4-6 mTorr) and Si/N ratio. The Si-rich silicon nitride film developed for nonlinear applications with refractive index of 2, high deposition rate, low hydrogen concentration and low roughness was used for fabrication of nonlinear microring resonators. Using the deposition process at low temperature, the stress limitation in thick silicon nitride films was eliminated. copyright 2014 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Espinel, Y. A. V.; Alegre, T. P. M.; Wiederhecker, G. S.
Brillouin scattering in silicon slotwaveguides Conference
2014.
@conference{Espinel2014,
title = {Brillouin scattering in silicon slotwaveguides},
author = {Espinel, Y.A.V. and Alegre, T.P.M. and Wiederhecker, G.S.},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84905403460&partnerID=40&md5=b173e0b15e13104d088736fdaebbdd21},
year = {2014},
date = {2014-01-01},
journal = {Optics InfoBase Conference Papers},
abstract = {Here we numerically investigate Brillouin scattering (BS) in a silicon slot waveguide. We show that BS is strongly influenced by the boundary effects, instead of the usual photo-elastic effect leading to the interaction with distinct mechanical modes. copyright 2014 Optical Society of America.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Gu, Q. a; Shane, J. a; Vallini, F. a; Smalley, J. S. T. a; Frateschi, N. C. b; Fainman, Y. a
Electrically pumped metallo-dielectric pedestal nanolasers with high thermal-conductivity shield Conference
2014.
@conference{Gu2014524,
title = {Electrically pumped metallo-dielectric pedestal nanolasers with high thermal-conductivity shield},
author = {Gu, Q.a and Shane, J.a and Vallini, F.a and Smalley, J.S.T.a and Frateschi, N.C.b and Fainman, Y.a},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84921321816&partnerID=40&md5=7efb38116d9ae8d624852aae53c7f6af},
doi = {10.1109/IPCon.2014.6995481},
year = {2014},
date = {2014-01-01},
journal = {2014 IEEE Photonics Conference, IPC 2014},
pages = {524-525},
abstract = {We implement amorphous-Al2O3 as thermally-conductive shield in metallo-dielectric nanolasers, and demonstrate an electrically pumped device. Joint consideration of various design parameters reveals that this design allows the laser to dissipate heat through its shield, aiding thermal management in nanoscale devices. copyright 2014 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Proceedings Articles
Espinel, Yovanny A V; Alegre, Thiago P M; Wiederhecker, Gustavo S
Brillouin Scattering in Silicon Slot Waveguides Proceedings Article
In: 2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2014, ISSN: 2160-9020, (Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, JUN 08-13, 2014).
@inproceedings{ISI:000369908601475,
title = {Brillouin Scattering in Silicon Slot Waveguides},
author = {Yovanny A V Espinel and Thiago P M Alegre and Gustavo S Wiederhecker},
issn = {2160-9020},
year = {2014},
date = {2014-01-01},
booktitle = {2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)},
publisher = {IEEE},
address = {345 E 47TH ST, NEW YORK, NY 10017 USA},
series = {Conference on Lasers and Electro-Optics},
abstract = {Here we numerically investigate Brillouin scattering (BS) in a silicon
slot waveguide. We show that BS is strongly influenced by the boundary
effects, instead of the usual photo-elastic effect leading to the
interaction with distinct mechanical modes. (C) 2014 Optical Society of
America},
note = {Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, JUN 08-13,
2014},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
slot waveguide. We show that BS is strongly influenced by the boundary
effects, instead of the usual photo-elastic effect leading to the
interaction with distinct mechanical modes. (C) 2014 Optical Society of
America
Souza, Mario C M M; Barea, Luis A M; Vallini, Felipe; Rezende, Guilherme F M; Wiederhecker, Gustavo S; Frateschi, Newton C
Low-power four-channel wavelength multicasting in embedded microring resonators Proceedings Article
In: 2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2014, ISSN: 2160-9020, (Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, JUN 08-13, 2014).
@inproceedings{ISI:000369908603369,
title = {Low-power four-channel wavelength multicasting in embedded microring
resonators},
author = {Mario C M M Souza and Luis A M Barea and Felipe Vallini and Guilherme F M Rezende and Gustavo S Wiederhecker and Newton C Frateschi},
issn = {2160-9020},
year = {2014},
date = {2014-01-01},
booktitle = {2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)},
publisher = {IEEE},
address = {345 E 47TH ST, NEW YORK, NY 10017 USA},
series = {Conference on Lasers and Electro-Optics},
abstract = {We demonstrate four-channel all-optical wavelength multicasting using
only 1 mW of pump power and channel spacing of 40-60 GHz. Our device is
based on a compact embedded microring design fabricated on a scalable
SOI platform.},
note = {Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, JUN 08-13,
2014},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
only 1 mW of pump power and channel spacing of 40-60 GHz. Our device is
based on a compact embedded microring design fabricated on a scalable
SOI platform.
2013
Journal Articles
Vallini, Felipe; Gu, Qing; Kats, Michael; Fainman, Yeshaiahu; Frateschi, Newton C.
Carrier saturation in multiple quantum well metallo-dielectric semiconductor nanolaser: Is bulk material a better choice for gain media? Journal Article
In: Optics Express, vol. 21, no. 22, pp. 25985, 2013, ISSN: 1094-4087.
@article{vallini_carrier_2013,
title = {Carrier saturation in multiple quantum well metallo-dielectric semiconductor nanolaser: Is bulk material a better choice for gain media?},
author = {Vallini, Felipe and Gu, Qing and Kats, Michael and Fainman, Yeshaiahu and Frateschi, Newton C.},
url = {http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-21-22-25985&id=269975},
issn = {1094-4087},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {21},
number = {22},
pages = {25985},
abstract = {Although multi quantum well (MQW) structure is frequently
suggested as the appropriate medium for providing optical gain in
nanolasers with low threshold current, we demonstrate that in general bulk
gain medium can be a better choice. We show that the high threshold gain
required for nanolasers demands high threshold carrier concentrations and
therefore a highly degenerate condition in which the barriers between the
quantum wells are heavily pumped. As a result, there occurs spontaneous
emission from the barrier in very dissipative low Q modes or undesired
confined higher Q modes with resonance wavelengths close to the barrier
bandgap. This results in a competition between wells and barriers that
suppresses lasing. A complete model involving the optical properties of the
resonant cavity combined with the carrier injection in the multilayer
structure is presented to support our argument. With this theoretical model
we show that while lasing is achieved in the nanolaser with bulk gain
media, the nanolaser with MQW gain structure exhibits well emission
saturation due to the onset of barrier emission.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
suggested as the appropriate medium for providing optical gain in
nanolasers with low threshold current, we demonstrate that in general bulk
gain medium can be a better choice. We show that the high threshold gain
required for nanolasers demands high threshold carrier concentrations and
therefore a highly degenerate condition in which the barriers between the
quantum wells are heavily pumped. As a result, there occurs spontaneous
emission from the barrier in very dissipative low Q modes or undesired
confined higher Q modes with resonance wavelengths close to the barrier
bandgap. This results in a competition between wells and barriers that
suppresses lasing. A complete model involving the optical properties of the
resonant cavity combined with the carrier injection in the multilayer
structure is presented to support our argument. With this theoretical model
we show that while lasing is achieved in the nanolaser with bulk gain
media, the nanolaser with MQW gain structure exhibits well emission
saturation due to the onset of barrier emission.
Malheiros-Silveira, Gilliard N.; Wiederhecker, Gustavo S.; Hern'andez-Figueroa, Hugo E.
Dielectric resonator antenna for applications in nanophotonics Journal Article
In: Optics Express, vol. 21, no. 1, pp. 1234–1239, 2013.
@article{malheiros-silveira_dielectric_2013,
title = {Dielectric resonator antenna for applications in nanophotonics},
author = {Malheiros-Silveira, Gilliard N. and Wiederhecker, Gustavo S. and Hern{'a}ndez-Figueroa, Hugo E.},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-21-1-1234},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {21},
number = {1},
pages = {1234--1239},
abstract = {Optical nanoantennas, especially of the dipole type, have been theoretically and experimentally demonstrated by many research groups. Likewise, the plasmonic waveguides and optical circuits have experienced significant advances. In radio frequencies and microwaves a category of antenna known as dielectric resonator antenna (DRA), whose radiant element is a dielectric resonator (DR), has been designed for several applications, including satellite and radar systems. In this letter, we explore the possibilities and advantages to design nano DRAs (NDRAs), i. e., DRAs for nanophotonics applications. Numerical demonstrations showing the fundamental antenna parameters for a circular cylindrical NDRA type have been carried out for the short (S), conventional (C), and long (L) bands of the optical communication spectrum.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gu, Qing; Slutsky, Boris; Vallini, Felipe; Smalley, Joseph S. T.; Nezhad, Maziar P.; Frateschi, Newton C.; Fainman, Yeshaiahu
Purcell effect in sub-wavelength semiconductor lasers Journal Article
In: Optics Express, vol. 21, no. 13, pp. 15603–15617, 2013.
@article{gu_purcell_2013,
title = {Purcell effect in sub-wavelength semiconductor lasers},
author = {Gu, Qing and Slutsky, Boris and Vallini, Felipe and Smalley, Joseph S. T. and Nezhad, Maziar P. and Frateschi, Newton C. and Fainman, Yeshaiahu},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-21-13-15603},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {21},
number = {13},
pages = {15603--15617},
abstract = {We present a formal treatment of the modification of spontaneous emission rate by a cavity (Purcell effect) in sub-wavelength semiconductor lasers. To explicitly express the assumptions upon which our formalism builds, we summarize the results of non-relativistic quantum electrodynamics (QED) and the emitter-field-reservoir model in the quantum theory of damping. Within this model, the emitter-field interaction is modified to the extent that the field mode is modified by its environment. We show that the Purcell factor expressions frequently encountered in the literature are recovered only in the hypothetical condition when the gain medium is replaced by a transparent medium. Further, we argue that to accurately evaluate the Purcell effect, both the passive cavity boundary and the collective effect of all emitters must be included as part of the mode environment.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Barea, Luis A. M.; Vallini, Felipe; Jarschel, Paulo F.; Frateschi, Newton C.
Silicon technology compatible photonic molecules for compact optical signal processing Journal Article
In: Applied Physics Letters, vol. 103, no. 20, pp. 201102, 2013, ISSN: 0003-6951, 1077-3118.
@article{barea_silicon_2013,
title = {Silicon technology compatible photonic molecules for compact optical signal processing},
author = {Barea, Luis A. M. and Vallini, Felipe and Jarschel, Paulo F. and Frateschi, Newton C.},
url = {http://scitation.aip.org/content/aip/journal/apl/103/20/10.1063/1.4829743},
issn = {0003-6951, 1077-3118},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
journal = {Applied Physics Letters},
volume = {103},
number = {20},
pages = {201102},
abstract = {Photonic molecules (PMs) based on multiple inner coupled microring resonators allow to surpass the fundamental constraint between the total quality factor (QT), free spectral range (FSR), and resonator size. In this work, we use a PM that presents doublets and triplets resonance splitting, all with high QT. We demonstrate the use of the doublet splitting for 34.2 GHz signal extraction by filtering the sidebands of a modulated optical signal. We also demonstrate that very compact optical modulators operating 2.75 times beyond its resonator linewidth limit may be obtained using the PM triplet splitting, with separation of ∼55 GHz.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Barea, L. A. M.; Vallini, F.; de Rezende, G. F. M.; Frateschi, N. C.
Spectral Engineering With CMOS Compatible SOI Photonic Molecules Journal Article
In: IEEE Photonics Journal, vol. 5, no. 6, pp. 2202717–2202717, 2013, ISSN: 1943-0655.
@article{barea_spectral_2013,
title = {Spectral Engineering With CMOS Compatible SOI Photonic Molecules},
author = {Barea, L.A.M. and Vallini, F. and de Rezende, G.F.M. and Frateschi, N.C.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Barea-et-al.-2013-Spectral-Engineering-With-CMOS-Compatible-SOI-Phot.pdf},
issn = {1943-0655},
year = {2013},
date = {2013-01-01},
journal = {IEEE Photonics Journal},
volume = {5},
number = {6},
pages = {2202717--2202717},
abstract = {Photonic systems based on microring resonators have a fundamental constraint given by the strict relationship among free spectral range, total quality factor QT , and resonator size, intrinsically making filter spacing, photonic lifetime, and footprint interdependent. Here, we break this paradigm employing CMOS-compatible silicon-on-insulator photonic molecules based on coupled multiple inner ring resonators. The resonance wavelengths and their respective linewidths are controlled by the hybridization of the quasi-orthogonal photonic states. We demonstrate photonic molecules with doublet and triplet resonances with spectral splitting only achievable with single-ring orders of magnitude larger in footprint. In addition, this splitting is potentially controllable based on the coupling (bonds) between resonators. Finally, the spatial distribution of the hybrid states allows up to sevenfold QT enhancement.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jiang, Cheng; Liu, Hongxiang; Cui, Yuanshun; Li, Xiaowei; Chen, Guibin; Chen, Bin
Electromagnetically induced transparency and slow light in two-mode optomechanics Journal Article
In: Optics Express, vol. 21, no. 10, pp. 12165–12173, 2013.
@article{jiang_electromagnetically_2013,
title = {Electromagnetically induced transparency and slow light in two-mode optomechanics},
author = {Jiang, Cheng and Liu, Hongxiang and Cui, Yuanshun and Li, Xiaowei and Chen, Guibin and Chen, Bin},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-21-10-12165},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {21},
number = {10},
pages = {12165--12173},
abstract = {We theoretically demonstrate the mechanically mediated electromagnetically induced transparency in a two-mode cavity optomechanical system, where two cavity modes are coupled to a common mechanical resonator. When the two cavity modes are driven on their respective red sidebands by two pump beams, a transparency window appears in the probe transmission spectrum due to destructive interference. Under this situation the transmitted probe beam can be delayed as much as 4 μs, which can be easily controlled by the power of the pump beams.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Conferences
Gu, Qing; Wingad, B.; Vallini, F.; Slutsky, B.; Katz, M.; Nezhad, M. P.; Frateschi, N. C.; Fainman, Y.
Electrically pumped metallo-dielectric pedestal nanolasers Conference
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013.
@conference{gu_electrically_2013,
title = {Electrically pumped metallo-dielectric pedestal nanolasers},
author = {Gu, Qing and Wingad, B. and Vallini, F. and Slutsky, B. and Katz, M. and Nezhad, M.P. and Frateschi, N.C. and Fainman, Y.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Gu-et-al.-2013-Electrically-pumped-metallo-dielectric-pedestal-na1.pdf},
year = {2013},
date = {2013-01-01},
booktitle = {2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)},
pages = {1--2},
abstract = {Electrically pumped metallo-dielectric nanolasers are demonstrated. Employing a two-step InP chemical etching, we obtain straight pedestal sidewalls and preferentially reduce the diameter of the n-doped InP cladding more than the p-doped one for optimized performance.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Zhang, Mian; Luiz, Gustavo O.; Shah, Shreyas; Nussenzveig, Paulo A.; Wiederhecker, Gustavo S.; Lipson, Michal
Eliminating Structural Loss in Optomechanical Resonators Using Elastic Wave Interference Conference
CLEO: 2013, OSA Technical Digest (online) Optical Society of America, 2013.
@conference{zhang_eliminating_2013,
title = {Eliminating Structural Loss in Optomechanical Resonators Using Elastic Wave Interference},
author = {Zhang, Mian and Luiz, Gustavo O. and Shah, Shreyas and Nussenzveig, Paulo A. and Wiederhecker, Gustavo S. and Lipson, Michal},
url = {http://www.opticsinfobase.org/abstract.cfm?URI=CLEO_SI-2013-CW1F.6},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
booktitle = {CLEO: 2013},
pages = {CW1F.6},
publisher = {Optical Society of America},
series = {OSA Technical Digest (online)},
abstract = {We theoretically and experimentally demonstrate that the support loss of double-disk optomechanical resonators can be minimized using destructive elastic wave interference. We show 100MHz Si3N4 resonators with mechanical quality factor of 10000 at room temperature.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Alberto Mijam Barea, Luis; Vallini, Felipe; P. Mayer Alegre, Thiago; S. Wiederhecker, Gustavo; Cesario Frateschi, Newton
Enhanced Q with Internally Coupled Microring Resonators Conference
CLEO: 2013, Optical Society of America, 2013.
@conference{alberto_mijam_barea_enhanced_2013,
title = {Enhanced Q with Internally Coupled Microring Resonators},
author = {Alberto Mijam Barea, Luis and Vallini, Felipe and P. Mayer Alegre, Thiago and S. Wiederhecker, Gustavo and Cesario Frateschi, Newton},
url = {http://www.opticsinfobase.org/abstract.cfm?URI=CLEO_AT-2013-JTu4A.42},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
booktitle = {CLEO: 2013},
pages = {JTu4A.42},
publisher = {Optical Society of America},
abstract = {We demonstrate fourfold quality factor (Q) enhancement with microring resonators internally coupled to larger microring resonator. Q textasciitilde 37,000 is obtained for a 5 μm radius microring in a 40 μm x 40 μm footprint device.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Jarschel, P. F.; Barea, L. A. M.; Souza, M. C. M. M.; Vallini, F.; Von Zuben, A. A. G.; Ramos, A. C.; Merlo, R. B.; Frateschi, N. C.
Erbium Doped Al2O3 films for integrated III #x2013;V photonics Conference
2013 Symposium on Microelectronics Technology and Devices (SBMicro), 2013.
@conference{jarschel_erbium_2013,
title = {Erbium Doped Al2O3 films for integrated III #x2013;V photonics},
author = {Jarschel, P.F. and Barea, L.A.M. and Souza, M.C.M.M. and Vallini, F. and Von Zuben, A.A.G. and Ramos, A.C. and Merlo, R.B. and Frateschi, N.C.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Jarschel-et-al.-2013-Erbium-Doped-Al2O3-films-for-integrated-III-x2013.pdf},
year = {2013},
date = {2013-01-01},
booktitle = {2013 Symposium on Microelectronics Technology and Devices (SBMicro)},
pages = {1--4},
abstract = {We describe the fabrication optimization of Er-doped Al2O3 films for III-V integrated photonics. Smooth and thick films, with high refractive index and Erbium emission in the C-band spectrum (1530 nm to 1565 nm) are obtained using the co-sputtering technique. Thermal annealing at 850 $,^circ$C is shown to provide the highest Photoluminescence intensity of the films. However, the onset of crystallization leads to large fluctuation in refractive index. We also show that the annealing at temperatures larger than 600 $,^circ$C causes well intermixing in the laser structure. Therefore, local annealing and/or a reduction in annealing temperature may be required. Alumina waveguides are fabricated by the same technique, but the process have to be improved, as optical losses are very high.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Zhang, Mian; Barnard, Arthur; Wiederhecker, Gustavo S.; McEuen, Paul L.; Lipson, Michal
Strong Interaction between a Single Carbon Nanotube and an Optical Microresonator Conference
CLEO: 2013, OSA Technical Digest (online) Optical Society of America, 2013.
@conference{zhang_strong_2013,
title = {Strong Interaction between a Single Carbon Nanotube and an Optical Microresonator},
author = {Zhang, Mian and Barnard, Arthur and Wiederhecker, Gustavo S. and McEuen, Paul L. and Lipson, Michal},
url = {http://www.opticsinfobase.org/abstract.cfm?URI=CLEO_QELS-2013-QM1B.1},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
booktitle = {CLEO: 2013},
pages = {QM1B.1},
publisher = {Optical Society of America},
series = {OSA Technical Digest (online)},
abstract = {We couple a single suspended carbon nanotube to the near field of a free standing optical microdisk. The strong interaction between the nanotube and the microcavity produces an ultrahigh photocurrent response as large as 0.35mA/W.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
PhD Theses
Vallini, Felipe; Frateschi, Newton Cesario
2013.
@phdthesis{vallini_nanolasers_2013,
title = {Nanolasers de semicondutor met'alico-diel'etrico com bombeio eletr^onico : a influ^encia do meio de ganho},
author = {Vallini, Felipe and Frateschi, Newton Cesario},
url = {http://www.bibliotecadigital.unicamp.br/document/?code=000917601&opt=1},
year = {2013},
date = {2013-01-01},
urldate = {2014-05-14},
abstract = {Resumo: Neste trabalho s~ao investigados os nanolasers de semicondutor do tipo met'alico-diel'etrico com injec c~ao eletr^onica. Com o uso de softwares robustos otimizamos as propriedades eletromagn'eticas das cavidades propostas atrav'es da soluc c~ao das equac c~oes de Maxwell em um meio material. Tamb'em resolvemos auto-consistentemente as equac c~oes de Poisson, de continuidade, de transporte e de Schroedinger para obter as propriedades eletr^onicas da cavidade. Tal otimizac c~ao, considerando a parte de confinamento do modo em conjunto com a parte da injec c~ao eletr^onica nunca havia sido proposta ou realizada para nanolasers. Estudamos o efeito do meio de ganho em um nanolaser desse tipo atrav'es da comparac c~ao do desempenho de um nanolaser com meio de ganho bulk e outro com meio de ganho de m'ultiplos poc cos qu^anticos. Essa an'alise foi feita inserindo um modelo de reservat'orio de portadores `as equac c~oes de taxa convencionais para nanolasers. Fabricamos dois nanolasers, um com cada meio de ganho. Os nanolasers foram caracterizados e demonstramos que um meio de ganho bulk 'e mais adequado ao desenvolvimento de nanolasers de semicondutor met'alico-diel'etrico com bombeio eletr^onico. Por fim, medimos um nanolaser com meio de ganho bulk a 77 K, o qual apresentou uma corrente de limiar da ordem de 2 mA, emiss~ao em 1567 nm e largura de linha de 0.4 nm.
Abstract: In this work we have investigated metallo-dielectric semiconductor nanolasers with electronic pumping. We have optimized the electromagnetic properties of the proposed cavities through the solution of Maxwell equations in a material media using robust software. We also solved self-consistently Poisson, continuity, transport and Schrodinger equations to obtain the electronic properties of the cavities. Such optimization, which considers the optical mode confinement together with the electronic injection, had not been proposed or realized for nanolasers yet. We have studied the effect of the gain media in this class of nanolaser comparing the performance of a nanolaser with bulk gain media and a nanolaser with multiple quantum wells gain media. This analysis was done inserting a reservoir model for carriers into conventional laser rate equations. We have fabricated two nanolasers, each one with one of the proposed gain media. The nanolasers were measured and we demonstrated that a bulk gain media is more suitable for the development of metallo-dielectric semiconductor nanolasers with electronic pumping. Finally, we have measured a bulk gain media nanolaser at 77 K, with a threshold current of 2 mA, emission at 1567 nm and a linewidth of 0.4 nm.},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
Abstract: In this work we have investigated metallo-dielectric semiconductor nanolasers with electronic pumping. We have optimized the electromagnetic properties of the proposed cavities through the solution of Maxwell equations in a material media using robust software. We also solved self-consistently Poisson, continuity, transport and Schrodinger equations to obtain the electronic properties of the cavities. Such optimization, which considers the optical mode confinement together with the electronic injection, had not been proposed or realized for nanolasers yet. We have studied the effect of the gain media in this class of nanolaser comparing the performance of a nanolaser with bulk gain media and a nanolaser with multiple quantum wells gain media. This analysis was done inserting a reservoir model for carriers into conventional laser rate equations. We have fabricated two nanolasers, each one with one of the proposed gain media. The nanolasers were measured and we demonstrated that a bulk gain media is more suitable for the development of metallo-dielectric semiconductor nanolasers with electronic pumping. Finally, we have measured a bulk gain media nanolaser at 77 K, with a threshold current of 2 mA, emission at 1567 nm and a linewidth of 0.4 nm.
2012
Journal Articles
Highly luminescent a-SiO x〈ER〉/SiO 2/Si multilayer structure Journal Article
In: vol. 4, 2012.
@article{lang_highly_2012,
title = {Highly luminescent a-SiO x〈ER〉/SiO 2/Si multilayer structure},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/06215006.pdf},
year = {2012},
date = {2012-08-01},
volume = {4},
abstract = {We have fabricated highly luminescent samples with erbium-doped amorphous silicon suboxide (a-SiO x 〈Er〉) layers on SiO 2/Si substrates. The layers are designed to provide a resonance with large modal overlap with the active material and with low quality factor (Q-factor) at 1540 nm. Also, the structure has higher Q-factor resonances in the wavelength range between 800 and 1000 nm. Within this range, strong light emission from a-SiO x defect-related radiative centers and emission from the Er 3+ 4I 11/2 - 4I 15/2 optical transition (980 nm) are observed. A twofold and fourfold improvement in photoluminescence (PL) intensity are achieved in the wavelength ranges between 800 and 1000 nm and between 1500 and 1600 nm (region of Er 3+ 4I 13/2 - 4I 15/2 transition), respectively, when compared to the a-SiO x 〈Er〉 active material deposited directly on Si substrate. The latter higher PL intensity enhancement is apparently caused by optical pumping at 980 nm (higher Q-factor) with subsequent emission from the 4I 15/2 level in the low Q-factor resonance at 1540 nm. Further, five times increase of this emission at 1540 nm is obtained after optimized temperature annealing. The temperature-induced quenching in the PL intensity indicates distinct deactivation energies related to different types of Er centers which are more or less coupled to defects depending on the thermal treatment temperature copyright 2009-2012 IEEE.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Figueira, David S. L.; Barea, Luis A. M.; Vallini, Felipe; Jarschel, Paulo F.; Lang, Rossano; Frateschi, Newton C.
a-SiOxtextlessErtextgreater active photonic crystal resonator membrane fabricated by focused Ga+ ion beam Journal Article
In: Optics Express, vol. 20, no. 17, pp. 18772–18783, 2012.
@article{figueira_-siox<er>_2012,
title = {a-SiOxtextlessErtextgreater active photonic crystal resonator membrane fabricated by focused Ga+ ion beam},
author = {Figueira, David S. L. and Barea, Luis A. M. and Vallini, Felipe and Jarschel, Paulo F. and Lang, Rossano and Frateschi, Newton C.},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-20-17-18772},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {20},
number = {17},
pages = {18772--18783},
abstract = {We have fabricated thin erbium-doped amorphous silicon sub-oxide (a-SiOxtextlessErtextgreater) photonic crystal membrane using focused gallium ion beam (FIB). The photonic crystal is composed of a hexagonal lattice with a H1 defect supporting two quasi-doubly degenerate second order dipole states. 2-D simulation was used for the design of the structure and full 3-D FDTD (Finite-Difference Time-Domain) numerical simulations were performed for a complete analysis of the structure. The simulation predicted a quality factor for the structure of Q = 350 with a spontaneous emission enhancement of 7. Micro photoluminescence measurements showed an integrated emission intensity enhancement of textasciitilde2 times with a Q = 130. We show that the discrepancy between simulation and measurement is due to the conical shape of the photonic crystal holes and the optical losses induced by FIB milling.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Menezes, J. W.; Barea, L. A M; Chillcce, E. F.; Frateschi, N.; Cescato, L.
Comparison of Plasmonic Arrays of Holes Recorded by Interference Lithography and Focused Ion Beam Journal Article
In: IEEE Photonics Journal, vol. 4, no. 2, pp. 544–551, 2012, ISSN: 1943-0655.
@article{menezes_comparison_2012,
title = {Comparison of Plasmonic Arrays of Holes Recorded by Interference Lithography and Focused Ion Beam},
author = {Menezes, J. W. and Barea, L. A M and Chillcce, E. F. and Frateschi, N. and Cescato, L.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Menezes-et-al.-2012-Comparison-of-Plasmonic-Arrays-of-Holes-Recorded-b.pdf},
issn = {1943-0655},
year = {2012},
date = {2012-01-01},
journal = {IEEE Photonics Journal},
volume = {4},
number = {2},
pages = {544--551},
abstract = {In this paper, we compare the geometric characteristics and the optical properties of plasmonic hole arrays recorded in gold (Au) films using two different techniques, namely, focused ion beam (FIB) and interference lithography (IL). The morphology of the samples was analyzed using a scanning electron microscope (SEM), and the plasmonic peaks were measured from the transmission spectrum of the samples. The diameters of the holes recorded by IL present approximately the same statistical deviation as those fabricated by FIB but in a much larger area. Although the transmittance measurements of both types of samples exhibit the characteristic plasmonic peaks, the intrinsic fabrication errors of each technique affect differently the optical spectra.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Moreau, Alberto L. D.; Janissen, Richard; Santos, Clelton A.; Peroni, Luis A.; Stach-Machado, Dagmar R.; de Souza, Alessandra A.; de Souza, Anete P.; Cotta, M^onica A.
Highly-sensitive and label-free indium phosphide biosensor for early phytopathogen diagnosis Journal Article
In: Biosensors and Bioelectronics, vol. 36, no. 1, pp. 62–68, 2012, ISSN: 0956-5663.
@article{moreau_highly-sensitive_2012,
title = {Highly-sensitive and label-free indium phosphide biosensor for early phytopathogen diagnosis},
author = {Moreau, Alberto L. D. and Janissen, Richard and Santos, Clelton A. and Peroni, Luis A. and Stach-Machado, Dagmar R. and de Souza, Alessandra A. and de Souza, Anete P. and Cotta, M{^o}nica A.},
url = {http://www.sciencedirect.com/science/article/pii/S0956566312002084},
issn = {0956-5663},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Biosensors and Bioelectronics},
volume = {36},
number = {1},
pages = {62--68},
abstract = {The development of highly-sensitive and label-free operating semiconductor-based, biomaterial detecting sensors has important applications in areas such as environmental science, biomedical research and medical diagnostics. In the present study, we developed an Indium Phosphide (InP) semiconductor-based resistive biosensor using the change of its electronic properties upon biomaterial adsorption as sensing element. To detect biomaterial at low concentrations, the procedure of functionalization and covalent biomolecule immobilization was also optimized to guarantee high molecule density and high reproducibility which are prerequisite for reliable results. The characterization, such as biomolecular conjugation efficiency, detection concentration limits, receptor:ligand specificity and concentration detection range was analyzed by using three different biological systems: i) synthetic dsDNA and two phytopathogenic diseases, ii) the severe CB-form of Citrus Tristeza Virus (CTV) and iii) Xylella fastidiosa, both causing great economic loss worldwide. The experimental results show a sensitivity of 1 pM for specific ssDNA detection and about 2 nM for the specific detection of surface proteins of CTV and X. fastidiosa phytopathogens. A brief comparison with other semiconductor based biosensors and other methodological approaches is discussed and confirms the high sensitivity and reproducibility of our InP based biosensor which could be suitable for reliable early infection diagnosis in environmental and life sciences.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Safavi-Naeini, Amir H.; Chan, Jasper; Hill, Jeff T.; Alegre, Thiago P. Mayer; Krause, Alex; Painter, Oskar
Observation of Quantum Motion of a Nanomechanical Resonator Journal Article
In: Physical Review Letters, vol. 108, no. 3, pp. 033602, 2012.
@article{safavi-naeini_observation_2012,
title = {Observation of Quantum Motion of a Nanomechanical Resonator},
author = {Safavi-Naeini, Amir H. and Chan, Jasper and Hill, Jeff T. and Alegre, Thiago P. Mayer and Krause, Alex and Painter, Oskar},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.108.033602},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Physical Review Letters},
volume = {108},
number = {3},
pages = {033602},
abstract = {In this Letter we use resolved sideband laser cooling to cool a mesoscopic mechanical resonator to near its quantum ground state (phonon occupancy 2.6$pm$0.2), and observe the motional sidebands generated on a second probe laser. Asymmetry in the sideband amplitudes provides a direct measure of the displacement noise power associated with quantum zero-point fluctuations of the nanomechanical resonator, and allows for an intrinsic calibration of the phonon occupation number.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Luo, Lian-Wee; Wiederhecker, Gustavo S.; Preston, Kyle; Lipson, Michal
Power insensitive silicon microring resonators Journal Article
In: Optics Letters, vol. 37, no. 4, pp. 590–592, 2012.
@article{luo_power_2012,
title = {Power insensitive silicon microring resonators},
author = {Luo, Lian-Wee and Wiederhecker, Gustavo S. and Preston, Kyle and Lipson, Michal},
url = {http://ol.osa.org/abstract.cfm?URI=ol-37-4-590},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Optics Letters},
volume = {37},
number = {4},
pages = {590--592},
abstract = {We demonstrate power insensitive silicon microring resonators without the need for active feedback control. The passive control of the resonance is achieved by utilizing the compensation of two counteracting processes, free carrier dispersion blueshift and thermo-optic redshift. In the fabricated devices, the resonant wavelength shifts less than one resonance linewidth for dropped power up to 335 μW, more than fivefold improvement in cavity energy handling capability compared to regular microrings.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fegadolli, William S.; Vargas, German; Wang, Xuan; Valini, Felipe; Barea, Luis A. M.; Oliveira, Jos'e E. B.; Frateschi, Newton; Scherer, Axel; Almeida, Vilson R.; Panepucci, Roberto R.
Reconfigurable silicon thermo-optical ring resonator switch based on Vernier effect control Journal Article
In: Optics Express, vol. 20, no. 13, pp. 14722–14733, 2012.
@article{fegadolli_reconfigurable_2012,
title = {Reconfigurable silicon thermo-optical ring resonator switch based on Vernier effect control},
author = {Fegadolli, William S. and Vargas, German and Wang, Xuan and Valini, Felipe and Barea, Luis A. M. and Oliveira, Jos{'e} E. B. and Frateschi, Newton and Scherer, Axel and Almeida, Vilson R. and Panepucci, Roberto R.},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-20-13-14722},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {20},
number = {13},
pages = {14722--14733},
abstract = {A proof-of-concept for a new and entirely CMOS compatible thermo-optic reconfigurable switch based on a coupled ring resonator structure is experimentally demonstrated in this paper. Preliminary results show that a single optical device is capable of combining several functionalities, such as tunable filtering, non-blocking switching and reconfigurability, in a single device with compact footprint (textasciitilde50μm x 30μm).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhang, Mian; Wiederhecker, Gustavo S.; Manipatruni, Sasikanth; Barnard, Arthur; McEuen, Paul; Lipson, Michal
Synchronization of Micromechanical Oscillators Using Light Journal Article
In: Physical Review Letters, vol. 109, no. 23, pp. 233906, 2012.
@article{zhang_synchronization_2012-1,
title = {Synchronization of Micromechanical Oscillators Using Light},
author = {Zhang, Mian and Wiederhecker, Gustavo S. and Manipatruni, Sasikanth and Barnard, Arthur and McEuen, Paul and Lipson, Michal},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.109.233906},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Physical Review Letters},
volume = {109},
number = {23},
pages = {233906},
abstract = {Synchronization, the emergence of spontaneous order in coupled systems, is of fundamental importance in both physical and biological systems. We demonstrate the synchronization of two dissimilar silicon nitride micromechanical oscillators, that are spaced apart by a few hundred nanometers and are coupled through an optical cavity radiation field. The tunability of the optical coupling between the oscillators enables one to externally control the dynamics and switch between coupled and individual oscillation states. These results pave a path toward reconfigurable synchronized oscillator networks.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhang, Mian; Wiederhecker, Gustavo S.; Manipatruni, Sasikanth; Barnard, Arthur; McEuen, Paul; Lipson, Michal
Synchronization of Micromechanical Oscillators Using Light Journal Article
In: Physical Review Letters, vol. 109, no. 23, pp. 233906, 2012.
@article{zhang_synchronization_2012b,
title = {Synchronization of Micromechanical Oscillators Using Light},
author = {Zhang, Mian and Wiederhecker, Gustavo S. and Manipatruni, Sasikanth and Barnard, Arthur and McEuen, Paul and Lipson, Michal},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.109.233906},
year = {2012},
date = {2012-01-01},
urldate = {2014-05-14},
journal = {Physical Review Letters},
volume = {109},
number = {23},
pages = {233906},
abstract = {Synchronization, the emergence of spontaneous order in coupled systems, is of fundamental importance in both physical and biological systems. We demonstrate the synchronization of two dissimilar silicon nitride micromechanical oscillators, that are spaced apart by a few hundred nanometers and are coupled through an optical cavity radiation field. The tunability of the optical coupling between the oscillators enables one to externally control the dynamics and switch between coupled and individual oscillation states. These results pave a path toward reconfigurable synchronized oscillator networks.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Conferences
Zhang, Mian; Wiederhecker, G. S.; Manipatruni, S.; Barnard, A.; McEuen, P. L.; Lipson, M.
Synchronization of coupled optomechanical oscillators Conference
2012 Conference on Lasers and Electro-Optics (CLEO), 2012.
@conference{zhang_synchronization_2012,
title = {Synchronization of coupled optomechanical oscillators},
author = {Zhang, Mian and Wiederhecker, G.S. and Manipatruni, S. and Barnard, A. and McEuen, P.L. and Lipson, M.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Zhang-et-al.-2012-Synchronization-of-coupled-optomechanical-oscillat.pdf},
year = {2012},
date = {2012-01-01},
booktitle = {2012 Conference on Lasers and Electro-Optics (CLEO)},
pages = {1--2},
abstract = {We demonstrate experimentally the synchronization of two micromechanical oscillators actuated by the optical radiation field. The mutual coupling is purely optical and fully tunable. Upon synchronization, the phase noise drops in agreement with the prediction.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Luo, Lian-Wee; Wiederhecker, G. S.; Preston, K.; Lipson, M.
Tailored resonance dependence on input optical power in silicon microring resonators Conference
Photonics Global Conference (PGC), 2012, 2012.
@conference{luo_tailored_2012,
title = {Tailored resonance dependence on input optical power in silicon microring resonators},
author = {Luo, Lian-Wee and Wiederhecker, G.S. and Preston, K. and Lipson, M.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Luo-et-al.-2012-Tailored-resonance-dependence-on-input-optical-pow.pdf},
year = {2012},
date = {2012-01-01},
booktitle = {Photonics Global Conference (PGC), 2012},
pages = {1--3},
abstract = {We demonstrate the ability to tailor the resonance dependence on input power in silicon microring resonators using a passive technique by utilizing two counteracting processes, free carrier dispersion blueshift and thermo-optic redshift. In our fabricated silicon microring resonators, we achieve an effective blueshift, as well as effective redshift. We also design and fabricate a power insenstive silicon microring that has a five-fold improvement in cavity energy handling capability compared to a regular microring.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
2011
Journal Articles
Winger, M.; Blasius, T. D.; Mayer Alegre, T. P.; Safavi-Naeini, A. H.; Meenehan, S.; Cohen, J.; Stobbe, S.; Painter, O.
A chip-scale integrated cavity-electro-optomechanics platform Journal Article
In: Optics Express, vol. 19, no. 25, pp. 24905–24921, 2011.
@article{winger_chip-scale_2011,
title = {A chip-scale integrated cavity-electro-optomechanics platform},
author = {Winger, M. and Blasius, T. D. and Mayer Alegre, T. P. and Safavi-Naeini, A. H. and Meenehan, S. and Cohen, J. and Stobbe, S. and Painter, O.},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-19-25-24905},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {19},
number = {25},
pages = {24905--24921},
abstract = {We present an integrated optomechanical and electromechanical nanocavity, in which a common mechanical degree of freedom is coupled to an ultrahigh-Q photonic crystal defect cavity and an electrical circuit. The system allows for wide-range, fast electrical tuning of the optical nanocavity resonances, and for electrical control of optical radiation pressure back-action effects such as mechanical amplification (phonon lasing), cooling, and stiffening. These sort of integrated devices offer a new means to efficiently interconvert weak microwave and optical signals, and are expected to pave the way for a new class of micro-sensors utilizing optomechanical back-action for thermal noise reduction and low-noise optical read-out.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vallini, Felipe; Barea, Lu'is A.; Reis, Elohim F. Dos; Zuben, Ant^onio A. Von; Frateschi, Newton C.
Analysis of Focused Ion Beam Damages in Optoelectronic Devices Fabrication Journal Article
In: ECS Transactions, vol. 39, no. 1, pp. 299–305, 2011, ISSN: 1938-6737, 1938-5862.
@article{vallini_analysis_2011,
title = {Analysis of Focused Ion Beam Damages in Optoelectronic Devices Fabrication},
author = {Vallini, Felipe and Barea, Lu{'i}s A. and Reis, Elohim F. Dos and Zuben, Ant{^o}nio A. Von and Frateschi, Newton C.},
url = {http://ecst.ecsdl.org/content/39/1/299},
issn = {1938-6737, 1938-5862},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {ECS Transactions},
volume = {39},
number = {1},
pages = {299--305},
abstract = {A study of the damages caused by gallium focused ion beam (FIB) is presented. Potential damages caused by local heating, ion implantation, and selective sputtering are presented. Preliminary analysis shows that local heating is negligible. Gallium implantation is shown to occur over areas tens of nanometers thick. Gallium accumulation as well as selective sputtering during III-V compound milling is expected. Particularly, for GaAs, this effect leads to gallium segregation and the formation of metallic clusters. Microdisks resonators are fabricated using FIB milling of different emission currents. It is shown that for higher emission current, thus higher implantation doses, the cavity quality factor rapidly decreases.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Wiederhecker, Gustavo S.; Manipatruni, Sasikanth; Lee, Sunwoo; Lipson, Michal
Broadband tuning of optomechanical cavities Journal Article
In: Optics Express, vol. 19, no. 3, pp. 2782–2790, 2011.
@article{wiederhecker_broadband_2011,
title = {Broadband tuning of optomechanical cavities},
author = {Wiederhecker, Gustavo S. and Manipatruni, Sasikanth and Lee, Sunwoo and Lipson, Michal},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-19-3-2782},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {19},
number = {3},
pages = {2782--2790},
abstract = {We demonstrate broadband tuning of an optomechanical microcavity optical resonance by exploring the large optomechanical coupling of a double-wheel microcavity and its uniquely low mechanical stiffness. Using a pump laser with only 13 mW at telecom wavelengths we show tuning of the silicon nitride microcavity resonances over 32 nm. This corresponds to a tuning power efficiency of only 400 mW/nm. By choosing a relatively low optical Q resonance (≈18,000) we prevent the cavity from reaching the regime of regenerative optomechanical oscillations. The static mechanical displacement induced by optical gradient forces is estimated to be as large as 60 nm.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Luo, Lian-Wee; Wiederhecker, Gustavo S.; Cardenas, Jaime; Poitras, Carl; Lipson, Michal
High quality factor etchless silicon photonic ring resonators Journal Article
In: Optics Express, vol. 19, no. 7, pp. 6284–6289, 2011.
@article{luo_high_2011,
title = {High quality factor etchless silicon photonic ring resonators},
author = {Luo, Lian-Wee and Wiederhecker, Gustavo S. and Cardenas, Jaime and Poitras, Carl and Lipson, Michal},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-19-7-6284},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {19},
number = {7},
pages = {6284--6289},
abstract = {We demonstrate high quality factor etchless silicon photonic ring resonators fabricated by selective thermal oxidation of silicon without the silicon layer being exposed to any plasma etching throughout the fabrication process. We achieve a high intrinsic quality factor of 510,000 in 50 µm-radius ring resonators, corresponding to a ring loss of 0.8 dB/cm. The device has a total chip insertion loss of 2.5 dB, achieved by designing etchless silicon inverse nanotapers at both the input and output of the chip.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chan, Jasper; Alegre, T. P. Mayer; Safavi-Naeini, Amir H.; Hill, Jeff T.; Krause, Alex; Gr"oblacher, Simon; Aspelmeyer, Markus; Painter, Oskar
Laser cooling of a nanomechanical oscillator into its quantum ground state Journal Article
In: Nature, vol. 478, no. 7367, pp. 89–92, 2011, ISSN: 0028-0836.
@article{chan_laser_2011,
title = {Laser cooling of a nanomechanical oscillator into its quantum ground state},
author = {Chan, Jasper and Alegre, T. P. Mayer and Safavi-Naeini, Amir H. and Hill, Jeff T. and Krause, Alex and Gr{"o}blacher, Simon and Aspelmeyer, Markus and Painter, Oskar},
url = {http://www.nature.com/nature/journal/v478/n7367/full/nature10461.html},
issn = {0028-0836},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {Nature},
volume = {478},
number = {7367},
pages = {89--92},
abstract = {The simple mechanical oscillator, canonically consisting of a coupled mass-spring system, is used in a wide variety of sensitive measurements, including the detection of weak forces and small masses. On the one hand, a classical oscillator has a well-defined amplitude of motion; a quantum oscillator, on the other hand, has a lowest-energy state, or ground state, with a finite-amplitude uncertainty corresponding to zero-point motion. On the macroscopic scale of our everyday experience, owing to interactions with its highly fluctuating thermal environment a mechanical oscillator is filled with many energy quanta and its quantum nature is all but hidden. Recently, in experiments performed at temperatures of a few hundredths of a kelvin, engineered nanomechanical resonators coupled to electrical circuits have been measured to be oscillating in their quantum ground state. These experiments, in addition to providing a glimpse into the underlying quantum behaviour of mesoscopic systems consisting of billions of atoms, represent the initial steps towards the use of mechanical devices as tools for quantum metrology or as a means of coupling hybrid quantum systems. Here we report the development of a coupled, nanoscale optical and mechanical resonator formed in a silicon microchip, in which radiation pressure from a laser is used to cool the mechanical motion down to its quantum ground state (reaching an average phonon occupancy number of nature10461-m1jpg1K8014). This cooling is realized at an environmental temperature of 20 K, roughly one thousand times larger than in previous experiments and paves the way for optical control of mesoscale mechanical oscillators in the quantum regime.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Alegre, Thiago P. Mayer; Safavi-Naeini, Amir; Winger, Martin; Painter, Oskar
Quasi-two-dimensional optomechanical crystals with a complete phononicbandgap Journal Article
In: Optics Express, vol. 19, no. 6, pp. 5658–5669, 2011.
@article{alegre_quasi-two-dimensional_2011,
title = {Quasi-two-dimensional optomechanical crystals with a complete phononicbandgap},
author = {Alegre, Thiago P. Mayer and Safavi-Naeini, Amir and Winger, Martin and Painter, Oskar},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-19-6-5658},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {19},
number = {6},
pages = {5658--5669},
abstract = {A fully planar two-dimensional optomechanical crystal formed in a silicon microchip is used to create a structure devoid of phonons in the GHz frequency range. A nanoscale photonic crystal cavity is placed inside the phononic bandgap crystal in order to probe the properties of the localized acoustic modes. By studying the trends in mechanical damping, mode density, and optomechanical coupling strength of the acoustic resonances over an array of structures with varying geometric properties, clear evidence of a complete phononic bandgap is shown.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Conferences
Cardenas, J.; Levy, J. S.; Wiederhecker, G.; Turner-Foster, A.; Gaeta, A. L.; Lipson, M.
Efficient frequency conversion at low-powers in a silicon microresonator using carrier extraction Conference
2011 Conference on Lasers and Electro-Optics (CLEO), 2011.
@conference{cardenas_efficient_2011,
title = {Efficient frequency conversion at low-powers in a silicon microresonator using carrier extraction},
author = {Cardenas, J. and Levy, J.S. and Wiederhecker, G. and Turner-Foster, A. and Gaeta, A.L. and Lipson, M.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Cardenas-et-al.-2011-Efficient-frequency-conversion-at-low-powers-in-a-.pdf},
year = {2011},
date = {2011-01-01},
booktitle = {2011 Conference on Lasers and Electro-Optics (CLEO)},
pages = {1--2},
abstract = {We demonstrate four-wave mixing in a silicon microresonator at low powers using a PIN diode to extract the generated carriers. We achieve conversion efficiencies as high as -6.6 dB with 7 mW of input power.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Luo, Lian-Wee; Wiederhecker, Gustavo; Preston, Kyle; Lipson, Michal
Engineering Optical Bistability in Silicon Ring Resonators Conference
CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) Optical Society of America, 2011.
@conference{luo_engineering_2011,
title = {Engineering Optical Bistability in Silicon Ring Resonators},
author = {Luo, Lian-Wee and Wiederhecker, Gustavo and Preston, Kyle and Lipson, Michal},
url = {http://www.opticsinfobase.org/abstract.cfm?URI=CLEO_SI-2011-CWC4},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
booktitle = {CLEO:2011 - Laser Applications to Photonic Applications},
pages = {CWC4},
publisher = {Optical Society of America},
series = {OSA Technical Digest (CD)},
abstract = {We demonstrate an atypical reverse optical bistability (blue shift of the resonance) in designed silicon ring resonators by compensating the thermo-optic red shift with a strong free carrier dispersion blue shift.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Alegre, T. P. M.; Safavi-Naeini, A. H.; Winger, M.; Painter, O.
Full phononic bandgap in 2D-optomechanical crystals Conference
2011 Conference on Lasers and Electro-Optics (CLEO), 2011.
@conference{alegre_full_2011,
title = {Full phononic bandgap in 2D-optomechanical crystals},
author = {Alegre, T.P.M. and Safavi-Naeini, A.H. and Winger, M. and Painter, O.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Alegre-et-al.-2011-Full-phononic-bandgap-in-2D-optomechanical-crystal.pdf},
year = {2011},
date = {2011-01-01},
booktitle = {2011 Conference on Lasers and Electro-Optics (CLEO)},
pages = {1--2},
abstract = {We demonstrate simultaneous strong confinement and interaction of photons and phonons in a quasi two-dimensional (2D) slab.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Manipatruni, Sasikanth; Weiderhecker, Gustavo; Lipson, Michal
Long-range synchronization of optomechanical structures Conference
OSA, 2011, ISBN: 978-1-55752-910-7.
@conference{manipatruni_long-range_2011,
title = {Long-range synchronization of optomechanical structures},
author = {Manipatruni, Sasikanth and Weiderhecker, Gustavo and Lipson, Michal},
url = {http://www.opticsinfobase.org/abstract.cfm?uri=qels-2011-qwi1},
isbn = {978-1-55752-910-7},
year = {2011},
date = {2011-01-01},
urldate = {2014-05-14},
pages = {QWI1},
publisher = {OSA},
abstract = {We theoretically and numerically demonstrate that long-range radiation force mediated
mechanical coupling and synchronization arise in optomechanical systems. We propose a planar
micro-optomechanical device that exhibits non-linear frequency and phase synchronization of two
unlike mechanical resonators.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
mechanical coupling and synchronization arise in optomechanical systems. We propose a planar
micro-optomechanical device that exhibits non-linear frequency and phase synchronization of two
unlike mechanical resonators.
Winger, M.; Alegre, T. P. M.; Safavi-Naeini, A. H.; Painter, O.
Tunable 2D photonic crystal cavities for cavity electro-optomechanics Conference
2011 Conference on Lasers and Electro-Optics (CLEO), 2011.
@conference{winger_tunable_2011,
title = {Tunable 2D photonic crystal cavities for cavity electro-optomechanics},
author = {Winger, M. and Alegre, T.P.M. and Safavi-Naeini, A.H. and Painter, O.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Winger-et-al.-2011-Tunable-2D-photonic-crystal-cavities-for-cavity-el.pdf},
year = {2011},
date = {2011-01-01},
booktitle = {2011 Conference on Lasers and Electro-Optics (CLEO)},
pages = {1--2},
abstract = {We present and demonstrate a novel electro-opto-mechanical structure based on a slotted waveguide photonic-crystal cavity, in which electrostatics and optics couple simultaneously to the same "phonon" resonance.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
2010
Journal Articles
Perahia, R.; Cohen, J. D.; Meenehan, S.; Alegre, T. P. Mayer; Painter, O.
Electrostatically tunable optomechanical ``zipper'' cavity laser Journal Article
In: Applied Physics Letters, vol. 97, no. 19, pp. 191112, 2010, ISSN: 0003-6951, 1077-3118.
@article{perahia_electrostatically_2010,
title = {Electrostatically tunable optomechanical ``zipper'' cavity laser},
author = {Perahia, R. and Cohen, J. D. and Meenehan, S. and Alegre, T. P. Mayer and Painter, O.},
url = {http://scitation.aip.org/content/aip/journal/apl/97/19/10.1063/1.3515296},
issn = {0003-6951, 1077-3118},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
journal = {Applied Physics Letters},
volume = {97},
number = {19},
pages = {191112},
abstract = {A tunable nanoscale ``zipper'' laser cavity, formed from two doubly clamped photonic crystal nanobeams, is demonstrated. Pulsed, room temperature, optically pumped lasing action at λ = 1.3 μ m is observed for cavities formed in a thin membrane containing InAsP/GaInAsP quantum-wells. Metal electrodes are deposited on the ends of the nanobeams to allow for microelectromechanical actuation. Electrostatic tuning over a range of Δ λ = 20 nm for an applied voltage amplitude of 9 V and modulation at a frequency as high as ν m = 6.7 MHz of the laser wavelength is demonstrated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Perahia, R.; Cohen, J. D.; Meenehan, S.; Alegre, T. P. Mayer; Painter, O.
Electrostatically tunable optomechanical ``zipper'' cavity laser Journal Article
In: Applied Physics Letters, vol. 97, no. 19, pp. 191112, 2010, ISSN: 0003-6951, 1077-3118.
@article{perahia_electrostatically_2010b,
title = {Electrostatically tunable optomechanical ``zipper'' cavity laser},
author = {Perahia, R. and Cohen, J. D. and Meenehan, S. and Alegre, T. P. Mayer and Painter, O.},
url = {http://scitation.aip.org/content/aip/journal/apl/97/19/10.1063/1.3515296},
issn = {0003-6951, 1077-3118},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
journal = {Applied Physics Letters},
volume = {97},
number = {19},
pages = {191112},
abstract = {A tunable nanoscale ``zipper'' laser cavity, formed from two doubly clamped photonic crystal nanobeams, is demonstrated. Pulsed, room temperature, optically pumped lasing action at λ = 1.3 μ m is observed for cavities formed in a thin membrane containing InAsP/GaInAsP quantum-wells. Metal electrodes are deposited on the ends of the nanobeams to allow for microelectromechanical actuation. Electrostatic tuning over a range of Δ λ = 20 nm for an applied voltage amplitude of 9 V and modulation at a frequency as high as ν m = 6.7 MHz of the laser wavelength is demonstrated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mialichi, J. R.; Camposeo, A.; Persano, L.; Barea, L. A. M.; Del Carro, P.; Pisignano, D.; Frateschi, N. C.
Hybrid planar microresonators with organic and InGaAs active media Journal Article
In: Optics Express, vol. 18, no. 11, pp. 11650–11656, 2010.
@article{mialichi_hybrid_2010,
title = {Hybrid planar microresonators with organic and InGaAs active media},
author = {Mialichi, J. R. and Camposeo, A. and Persano, L. and Barea, L. A. M. and Del Carro, P. and Pisignano, D. and Frateschi, N. C.},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-18-11-11650},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
journal = {Optics Express},
volume = {18},
number = {11},
pages = {11650--11656},
abstract = {The authors report on the fabrication of hybrid planar micro-resonators based on InGaAs microdisks with an evaporated organic material. Samples of InGaAs grown on InP(100) substrates are obtained by Chemical Beam Epitaxy, and microdisks of InGaAs with different diameters are fabricated by focused ion beam. The hybrid disks are obtained by the subsequent evaporation of 8-hydroxyquinoline aluminium doped with 4-Dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran on the InGaAs microdisks. The devices, characterized by micro- and confocal photoluminescence imaging and spectroscopy, exhibit emission around 650 nm, from the organic material for disks with different radius. Finally, simultaneous emission in the visible and at whispering gallery resonant modes in the 1350-1450 nm range are observed due to excitation transfer to InGaAs. These devices open the possibility to combine the flexibility of organics with the high gain of III-V compounds for wavelength down conversion and telecom applications.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Safavi-Naeini, Amir H.; Alegre, Thiago P. Mayer; Winger, Martin; Painter, Oskar
Optomechanics in an ultrahigh-Q two-dimensional photonic crystal cavity Journal Article
In: Applied Physics Letters, vol. 97, no. 18, pp. 181106, 2010, ISSN: 0003-6951, 1077-3118.
@article{safavi-naeini_optomechanics_2010,
title = {Optomechanics in an ultrahigh-Q two-dimensional photonic crystal cavity},
author = {Safavi-Naeini, Amir H. and Alegre, Thiago P. Mayer and Winger, Martin and Painter, Oskar},
url = {http://scitation.aip.org/content/aip/journal/apl/97/18/10.1063/1.3507288},
issn = {0003-6951, 1077-3118},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
journal = {Applied Physics Letters},
volume = {97},
number = {18},
pages = {181106},
abstract = {We demonstrate an ultrahigh- Q slotted two-dimensional photonic crystalcavity capable of obtaining strong interaction between the internal light field and the mechanical motion of the slotted structure. The measured optical quality factor is Q = 1.2 × 10 6 for a cavity with an effective modal volume of V eff = 0.04 ( λ ) 3 . Optical transduction of the thermal motion of the fundamental in-plane mechanical resonance of the structure ( ν m = 151 MHz ) is performed, from which a zero-point motion optomechanical coupling rate of g ∗ / 2 π = 320 kHz is inferred. Dynamical back-action of the optical field on the mechanical motion, resulting in cooling and amplication of the mechanical motion, is also demonstrated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mialichi, Jose R.; Barea, Luis Alberto M.; Souza, Patricia L. De; Kawabata, Rudy Massami S.; Pires, Mauricio P.; Frateschi, Newton C.
Resonance Modes in InAs/InGaAlAs/InP Quantum Dot Microdisk Resonators Journal Article
In: ECS Transactions, vol. 31, no. 1, pp. 289–293, 2010, ISSN: 1938-6737, 1938-5862.
@article{mialichi_resonance_2010,
title = {Resonance Modes in InAs/InGaAlAs/InP Quantum Dot Microdisk Resonators},
author = {Mialichi, Jose R. and Barea, Luis Alberto M. and Souza, Patricia L. De and Kawabata, Rudy Massami S. and Pires, Mauricio P. and Frateschi, Newton C.},
url = {http://ecst.ecsdl.org/content/31/1/289},
issn = {1938-6737, 1938-5862},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
journal = {ECS Transactions},
volume = {31},
number = {1},
pages = {289--293},
abstract = {The authors report on the development of quantum dot microdisk resonators grown by metal-organic chemical vapor deposition. Two stacked layers of InAs quantum dots embedded in a lattice-matched InGaAlAs (λg=1.47 μm) are grown on (100) InP substrate. A new approach for the fabrication of active microdisk resonators is developed using focused-ion beam (FIB) followed by selective wet-chemical etching. Electrical and optical characterization of the resonator is presented. Emission in the C-band at whispering-gallery modes is observed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Copyright Notices
AIP: Copyright© (2006-2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. APS: The right, after publication by APS, to use all or part of the Article without revision or modification, including the APS-formatted version, in print compilations or other print publications of the author(s)’ and/or the employer’s own works, and on the author(s)’ and/or the employer’s web home page, and to make copies of all or part of the Article for the author(s)’ and/or the employer’s use for lecture or classroom purposes. OSA: The right, after publication by OSA, to use all or part of the Work without revision or modification, including the OSA-formatted version, in personal compilations or other publications consisting solely of the Author(s’) own works, including the Author(s’) personal web home page, and to make copies of all or part of the Work for the Author(s’) use for lecture or classroom purposes.