Model for Frequency-Dependent Nonlinear Propagation in 2D-Decorated Nanowires

We show that 2D-decorated silicon nanowires exhibit a strong frequency dependence of the real (Kerr) and imaginary (two-photon absorption) nonlinear coefficients. In this setting, we demonstrate that the usual extension of the nonlinear Schrödinger equation used to model propagation in this type of...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2021-08, Vol.57 (4), p.1-8
Main Authors: Linale, Nicolas, Bonetti, Juan, Sanchez, Alfredo D., Fierens, Pablo I., Grosz, Diego F.
Format: Article
Language:English
Subjects:
Absorption
Decorated nanowires
Decoration
Graphene
Mathematical model
Mathematical models
Nanowires
nonlinear optical pulse propagation
Nonlinear optics
Photon absorption
Photonics
Schrodinger equation
Silicon
Two dimensional models
Wave propagation
Waveguides
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Summary:We show that 2D-decorated silicon nanowires exhibit a strong frequency dependence of the real (Kerr) and imaginary (two-photon absorption) nonlinear coefficients. In this setting, we demonstrate that the usual extension of the nonlinear Schrödinger equation used to model propagation in this type of waveguides is rendered inadequate. Hence, we introduce a new modeling framework to tackle the frequency dependence of the nonlinear coefficients in 2D-decorated nanowires, and present an example of its application to the relevant case of supercontinuum generation in graphene- and graphene-oxide decorated silicon nanowires.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2021.3082523