81.
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}
}
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.
82.
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}
}
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.
83.
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}
}
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.
84.
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}
}
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.
85.
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}
}
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.
86.
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}
}
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.
87.
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}
}
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.
88.
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}
}
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.
89.
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}
}
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.
90.
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}
}
We demonstrate simultaneous strong confinement and interaction of photons and phonons in a quasi two-dimensional (2D) slab.
91.
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}
}
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.
92.
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}
}
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.
93.
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}
}
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.
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.
94.
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}
}
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.
95.
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}
}
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.
96.
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}
}
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.
97.
Safavi-Naeini, A. H.; Mayer Alegre, T. P.; Painter, O. J.
Efficient on-chip phonon-photon translation Conference
2010 Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010.
@conference{safavi-naeini_efficient_2010,
title = {Efficient on-chip phonon-photon translation},
author = {Safavi-Naeini, A.H. and Mayer Alegre, T.P. and Painter, O.J.},
url = {https://sites.ifi.unicamp.br/lpd/files/2014/10/Safavi-Naeini-et-al.-2010-Efficient-on-chip-phonon-photon-translation.pdf},
year = {2010},
date = {2010-01-01},
booktitle = {2010 Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS)},
pages = {1--2},
abstract = {We propose, analyze, design, and take the first experimental steps towards the demonstration of an on-chip device capable of converting photons to phonons, and vice versa, in a nearly quantum-limited setting.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
We propose, analyze, design, and take the first experimental steps towards the demonstration of an on-chip device capable of converting photons to phonons, and vice versa, in a nearly quantum-limited setting.
98.
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}
}
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.
99.
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}
}
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.
100.
Valine, Felipe; Zuben, Ant^onio A.; Frateschi, Newton C.
Multi-Segmented Semiconductor Optical Amplifier for Optical Saturation Control Conference
Latin America Optics and Photonics Conference, OSA Technical Digest (CD) Optical Society of America, 2010.
@conference{valine_multi-segmented_2010,
title = {Multi-Segmented Semiconductor Optical Amplifier for Optical Saturation Control},
author = {Valine, Felipe and Zuben, Ant{^o}nio A. and Frateschi, Newton C.},
url = {http://www.opticsinfobase.org/abstract.cfm?URI=LAOP-2010-ThB2},
year = {2010},
date = {2010-01-01},
urldate = {2014-05-14},
booktitle = {Latin America Optics and Photonics Conference},
pages = {ThB2},
publisher = {Optical Society of America},
series = {OSA Technical Digest (CD)},
abstract = {We fabricated multi-contacts tilted semiconductor amplifiers based on InGaAsP/InP quantum wells for external control of the optical power saturation. A linearity control of the amplification for DC signals was achieved for relatively low injection current},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
We fabricated multi-contacts tilted semiconductor amplifiers based on InGaAsP/InP quantum wells for external control of the optical power saturation. A linearity control of the amplification for DC signals was achieved for relatively low injection current
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