Brillouin Optomechanics in Coupled Silicon Microcavities

The simultaneous control of optical and mechanical waves has enabled a range of fundamental and technological breakthroughs, from the demonstration of ultra-stable frequency reference devices to the exploration of the quantum-classical boundaries in laser-cooling experiments. More recently, such an...

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Bibliographic Details
Published in:arXiv.org 2016-09
Main Authors: Yovanny A V Espinel, Santos, Felipe G S, Luiz, Gustavo O, Alegre, Thiago P M, Wiederhecker, Gustavo S
Format: Article
Language:English
Subjects:
Laser cooling
Microcavities
Opto-mechanics
Scattering
Waveguides
Online Access:Get full text
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Summary:The simultaneous control of optical and mechanical waves has enabled a range of fundamental and technological breakthroughs, from the demonstration of ultra-stable frequency reference devices to the exploration of the quantum-classical boundaries in laser-cooling experiments. More recently, such an opto-mechanical interaction has been observed in integrated nano-waveguides and microcavities in the Brillouin regime, where short-wavelength mechanical modes scatters light at several GHz. Here we engineer coupled optical microcavities spectra to enable a low threshold excitation of mechanical travelling-wave modes through backward stimulated Brillouin scattering. Exploring the backward scattering we propose microcavity designs supporting super high frequency modes (\(\sim25\) GHz) an large optomechanical coupling rates (\(g_0/2\pi \sim 50\) kHz).
ISSN:2331-8422
DOI:10.48550/arxiv.1609.09509