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Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides
Nanoscale modal confinement is known to radically enhance the effect of intrinsic Kerr and Raman nonlinearities within nanophotonic silicon waveguides. By contrast, stimulated Brillouin-scattering nonlinearities, which involve coherent coupling between guided photon and phonon modes, are stifled in...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3709496/ https://www.ncbi.nlm.nih.gov/pubmed/23739586 http://dx.doi.org/10.1038/ncomms2943 |
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author | Shin, Heedeuk Qiu, Wenjun Jarecki, Robert Cox, Jonathan A. Olsson, Roy H. Starbuck, Andrew Wang, Zheng Rakich, Peter T. |
author_facet | Shin, Heedeuk Qiu, Wenjun Jarecki, Robert Cox, Jonathan A. Olsson, Roy H. Starbuck, Andrew Wang, Zheng Rakich, Peter T. |
author_sort | Shin, Heedeuk |
collection | PubMed |
description | Nanoscale modal confinement is known to radically enhance the effect of intrinsic Kerr and Raman nonlinearities within nanophotonic silicon waveguides. By contrast, stimulated Brillouin-scattering nonlinearities, which involve coherent coupling between guided photon and phonon modes, are stifled in conventional nanophotonics, preventing the realization of a host of Brillouin-based signal-processing technologies in silicon. Here we demonstrate stimulated Brillouin scattering in silicon waveguides, for the first time, through a new class of hybrid photonic–phononic waveguides. Tailorable travelling-wave forward-stimulated Brillouin scattering is realized—with over 1,000 times larger nonlinearity than reported in previous systems—yielding strong Brillouin coupling to phonons from 1 to 18 GHz. Experiments show that radiation pressures, produced by subwavelength modal confinement, yield enhancement of Brillouin nonlinearity beyond those of material nonlinearity alone. In addition, such enhanced and wideband coherent phonon emission paves the way towards the hybridization of silicon photonics, microelectromechanical systems and CMOS signal-processing technologies on chip. |
format | Online Article Text |
id | pubmed-3709496 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-37094962013-07-15 Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides Shin, Heedeuk Qiu, Wenjun Jarecki, Robert Cox, Jonathan A. Olsson, Roy H. Starbuck, Andrew Wang, Zheng Rakich, Peter T. Nat Commun Article Nanoscale modal confinement is known to radically enhance the effect of intrinsic Kerr and Raman nonlinearities within nanophotonic silicon waveguides. By contrast, stimulated Brillouin-scattering nonlinearities, which involve coherent coupling between guided photon and phonon modes, are stifled in conventional nanophotonics, preventing the realization of a host of Brillouin-based signal-processing technologies in silicon. Here we demonstrate stimulated Brillouin scattering in silicon waveguides, for the first time, through a new class of hybrid photonic–phononic waveguides. Tailorable travelling-wave forward-stimulated Brillouin scattering is realized—with over 1,000 times larger nonlinearity than reported in previous systems—yielding strong Brillouin coupling to phonons from 1 to 18 GHz. Experiments show that radiation pressures, produced by subwavelength modal confinement, yield enhancement of Brillouin nonlinearity beyond those of material nonlinearity alone. In addition, such enhanced and wideband coherent phonon emission paves the way towards the hybridization of silicon photonics, microelectromechanical systems and CMOS signal-processing technologies on chip. Nature Pub. Group 2013-06-06 /pmc/articles/PMC3709496/ /pubmed/23739586 http://dx.doi.org/10.1038/ncomms2943 Text en Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/3.0 This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/. |
spellingShingle | Article Shin, Heedeuk Qiu, Wenjun Jarecki, Robert Cox, Jonathan A. Olsson, Roy H. Starbuck, Andrew Wang, Zheng Rakich, Peter T. Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title | Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title_full | Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title_fullStr | Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title_full_unstemmed | Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title_short | Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides |
title_sort | tailorable stimulated brillouin scattering in nanoscale silicon waveguides |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3709496/ https://www.ncbi.nlm.nih.gov/pubmed/23739586 http://dx.doi.org/10.1038/ncomms2943 |
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