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Title: Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides

Abstract

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

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [3];  [4]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics
  3. Univ. of Texas, Austin, TX (United States). Dept. of Electrical and Computer Engineering
  4. Yale Univ., New Haven, CT (United States). Dept. of Physics
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1623909
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 4; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; Science & Technology - Other Topics

Citation Formats

Shin, Heedeuk, Qiu, Wenjun, Jarecki, Robert, Cox, Jonathan A., Olsson, Roy H., Starbuck, Andrew, Wang, Zheng, and Rakich, Peter T. Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides. United States: N. p., 2013. Web. doi:10.1038/ncomms2943.
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. United States. https://doi.org/10.1038/ncomms2943
Shin, Heedeuk, Qiu, Wenjun, Jarecki, Robert, Cox, Jonathan A., Olsson, Roy H., Starbuck, Andrew, Wang, Zheng, and Rakich, Peter T. 2013. "Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides". United States. https://doi.org/10.1038/ncomms2943. https://www.osti.gov/servlets/purl/1623909.
@article{osti_1623909,
title = {Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides},
author = {Shin, Heedeuk and Qiu, Wenjun and Jarecki, Robert and Cox, Jonathan A. and Olsson, Roy H. and Starbuck, Andrew and Wang, Zheng and Rakich, Peter T.},
abstractNote = {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},
doi = {10.1038/ncomms2943},
url = {https://www.osti.gov/biblio/1623909}, journal = {Nature Communications},
issn = {2041-1723},
number = 1,
volume = 4,
place = {United States},
year = {Thu Jun 06 00:00:00 EDT 2013},
month = {Thu Jun 06 00:00:00 EDT 2013}
}

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