Jan 19

Observation of Quantum Motion of a Nanomechanical Resonator

Observation of Quantum Motion of a Nanomechanical Resonator

from PRL Editors’ Suggestions by Amir H. Safavi-Naeini, Jasper Chan, Jeff T. Hill, Thiago P. Mayer Alegre, Alex Krause, and Oskar Painter

Author(s): Amir H. Safavi-Naeini, Jasper Chan, Jeff T. Hill, Thiago P. Mayer Alegre, Alex Krause, and Oskar Painter

Selected for a Viewpoint in Physics PRL Editors' Suggestion 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±0.2), and observe the motional sidebands generated on a second probe laser. Asymmetry in the sideband amplitudes provides a direct measure of the dis…

[Phys. Rev. Lett. 108, 033602] Published Tue Jan 17, 2012

Nov 22

A chip-scale integrated cavity-electro-optomechanics platform

A chip-scale integrated cavity-electro-optomechanics platform

M. Winger, T. D. Blasius, T. P. Mayer Alegre, A. H. Safavi-Naeini, S. Meenehan, J. Cohen, S. Stobbe, and O. Painter

Optics Express, 19, 24905-24921 (2011)
doi:10.1364/OE.19.024905

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. Continue reading

Oct 05

Laser cooling of a nanomechanical oscillator into its quantum ground state

Laser cooling of a nanomechanical oscillator into its quantum ground state

from Nature by Oskar Painter

Laser cooling of a nanomechanical oscillator into its quantum ground state

Nature 478, 7367 (2011). doi:10.1038/nature10461

Authors: Jasper Chan, T. P. Mayer Alegre, Amir H. Safavi-Naeini, Jeff T. Hill, Alex Krause, Simon Gröblacher, Markus Aspelmeyer & Oskar Painter

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. Continue reading

Sep 06

Dynamic modulation of photonic crystal nanocavities using gigahertz acoustic phonons

Dynamic modulation of photonic crystal nanocavities using gigahertz acoustic phonons

from Nat. Photonics – AOP by Hubert J. Krenner

Nature Photonics. doi:10.1038/nphoton.2011.208

Authors: Daniel A. Fuhrmann, Susanna M. Thon, Hyochul Kim, Dirk Bouwmeester, Pierre M. Petroff, Achim Wixforth & Hubert J. Krenner

Abstract: Photonic crystal membranes provide a versatile planar platform for on-chip implementations of photonic quantum circuits1–3. Continue reading

Sep 06

A single nitrogen-vacancy defect coupled to a nanomechanical oscillator

A single nitrogen-vacancy defect coupled to a nanomechanical oscillator

by S. Seidelin

Nature Physics. doi:10.1038/nphys2070

Authors: O. Arcizet, V. Jacques, A. Siria, P. Poncharal, P. Vincent & S. Seidelin

Abstract: We position a single nitrogen-vacancy (NV) centre hosted in a diamond nanocrystal at the extremity of a SiC nanowire. Continue reading

Aug 26

Measurement of the quantum zero-point motion of a nanomechanical resonator

Measurement of the quantum zero-point motion of a nanomechanical resonator. (arXiv:1108.4680v1 [quant-ph])

from quant-ph – arXiv by Amir H. Safavi-Naeini, Jasper Chan, Jeff T. Hill, T. P. Mayer Alegre, Alex Krause, Oskar Painter

We present optical sideband spectroscopy measurements of a mesoscopic mechanical oscillator cooled near its quantum ground state. Continue reading

Aug 16

Reconfigurable light-driven opto-acoustic isolators in photonic crystal fibre

Reconfigurable light-driven opto-acoustic isolators in photonic crystal fibre

by P. St. J. Russell

Reconfigurable light-driven opto-acoustic isolators in photonic crystal fibre

Nature Photonics. doi:10.1038/nphoton.2011.180

Authors: M. S. Kang, A. Butsch & P. St. J. Russell

Dynamic optical isolation with all-optical switching capability is in Continue reading

Jul 28

Graphene Plasmonics

Graphene Plasmonics: A Platform for Strong Light–Matter Interactions

by Frank H. L. Koppens, Darrick E. Chang and F. Javier Garcia de Abajo

Graphene plasmons provide a suitable alternative to noble-metal plasmons Continue reading

Jul 25

Laser cooling of a nanomechanical oscillator into its quantum ground state.

Laser cooling of a nanomechanical oscillator into its quantum ground state. (arXiv:1106.3614v1 [quant-ph])

from quant-ph – arXiv by Jasper Chan, T. P. Mayer Alegre, Amir H. Safavi-Naeini, Jeff T. Hill, Alex Krause, Simon Groeblacher, Markus Aspelmeyer, Oskar Painter

A patterned Si nanobeam is formed which supports co-localized acoustic and optical resonances that are coupled via radiation pressure.
Continue reading

Jul 25

Electromagnetically induced transparency and slow light with optomechanics

Electromagnetically induced transparency and slow light with optomechanics

from Nature by O. Painter

Electromagnetically induced transparency and slow light with optomechanics

Nature 472, 7341 (2011). doi:10.1038/nature09933

Authors: A. H. Safavi-Naeini, T. P. Mayer Alegre, J. Chan, M. Eichenfield, M. Winger, Q. Lin, J. T. Hill, D. E. Chang & O. Painter

Controlling the interaction between localized optical and mechanical excitations has recently become possible following advances in micro- and nanofabrication techniques. Continue reading