Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics

Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics

We numerically study silicon waveguides on silica showing that it is possible to simultaneously guide optical and acoustic waves in the technologically important silicon on insulator (SOI) material system. Thin waveguides, or fins, exhibit geometrically softened mechanical modes at gigahertz frequen...

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Main Authors: Christopher J. Sarabalis, Jeff T. Hill, Amir H. Safavi-Naeini
Format: Article
Language:English
Published: AIP Publishing LLC 2016-10-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/1.4955002
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spelling doaj-80b6b6e4938046f698fad953b78fa53b2020-11-24T21:29:00ZengAIP Publishing LLCAPL Photonics2378-09672016-10-0117071301071301-710.1063/1.4955002003604APPGuided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanicsChristopher J. Sarabalis0Jeff T. Hill1Amir H. Safavi-Naeini2Ginzton Laboratory, Department of Applied Physics, Stanford University, Stanford, California 94305, USAGinzton Laboratory, Department of Applied Physics, Stanford University, Stanford, California 94305, USAGinzton Laboratory, Department of Applied Physics, Stanford University, Stanford, California 94305, USAWe numerically study silicon waveguides on silica showing that it is possible to simultaneously guide optical and acoustic waves in the technologically important silicon on insulator (SOI) material system. Thin waveguides, or fins, exhibit geometrically softened mechanical modes at gigahertz frequencies with phase velocities below the Rayleigh velocity in glass, eliminating acoustic radiation losses. We propose slot waveguides on glass with telecom optical frequencies and strong radiation pressure forces resulting in Brillouin gains on the order of 500 and 50 000 W−1m−1 for backward and forward Brillouin scattering, respectively.http://dx.doi.org/10.1063/1.4955002
collection DOAJ
language English
format Article
sources DOAJ
author Christopher J. Sarabalis
Jeff T. Hill
Amir H. Safavi-Naeini
spellingShingle Christopher J. Sarabalis
Jeff T. Hill
Amir H. Safavi-Naeini
Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
APL Photonics
author_facet Christopher J. Sarabalis
Jeff T. Hill
Amir H. Safavi-Naeini
author_sort Christopher J. Sarabalis
title Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
title_short Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
title_full Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
title_fullStr Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
title_full_unstemmed Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
title_sort guided acoustic and optical waves in silicon-on-insulator for brillouin scattering and optomechanics
publisher AIP Publishing LLC
series APL Photonics
issn 2378-0967
publishDate 2016-10-01
description We numerically study silicon waveguides on silica showing that it is possible to simultaneously guide optical and acoustic waves in the technologically important silicon on insulator (SOI) material system. Thin waveguides, or fins, exhibit geometrically softened mechanical modes at gigahertz frequencies with phase velocities below the Rayleigh velocity in glass, eliminating acoustic radiation losses. We propose slot waveguides on glass with telecom optical frequencies and strong radiation pressure forces resulting in Brillouin gains on the order of 500 and 50 000 W−1m−1 for backward and forward Brillouin scattering, respectively.
url http://dx.doi.org/10.1063/1.4955002
work_keys_str_mv AT christopherjsarabalis guidedacousticandopticalwavesinsilicononinsulatorforbrillouinscatteringandoptomechanics
AT jeffthill guidedacousticandopticalwavesinsilicononinsulatorforbrillouinscatteringandoptomechanics
AT amirhsafavinaeini guidedacousticandopticalwavesinsilicononinsulatorforbrillouinscatteringandoptomechanics
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