Photothermal nonlinearity and optical bistability in a graphene-silicon waveguide resonator

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DOIResolve DOI: http://doi.org/10.1364/OL.38.005036
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TypeArticle
Journal titleOptics Letters
ISSN0146-9592
Volume38
Issue23
Pages50365039; # of pages: 4
SubjectFabry-Perot resonators; Graphene layers; Nonlinear index; Nonlinear resonance; Silicon waveguide; Temperature increase; Thermal nonlinearities; Waveguide resonators; Resonators; Silicon; Waveguides; Graphene
AbstractWe report observation of optical bistability and enhanced thermal nonlinearity in a graphene-silicon waveguide resonator. Photo-induced Joule heating in the graphene layer gives rise to a temperature increase in the silicon waveguide core and a corresponding thermo-optic shift in the resonance of the Fabry-Perot resonator. Measurement of the nonlinear resonance spectra showed a 9-fold increase in the effective thermal nonlinear index due to the graphene layer compared with a bare silicon waveguide. © 2013 Optical Society of America.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Security and Disruptive Technologies
Peer reviewedYes
NPARC number21271848
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Record identifier8eaa2caa-b147-475a-bc38-ed84d6f08657
Record created2014-04-23
Record modified2016-05-09
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