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- W3012227146 abstract "Discrete nonlinear Schrodinger equations havebeen used for many years to model the propagation of light in optical architectures whose refractive index profile is modulated periodicallyin the transverse direction. Typically, one considers a modal decomposition of the electric fieldwhere the complex amplitudes satisfy a coupledsystem that accommodates nearest neighbourlinear interactions and a local intensity dependent term whose origin lies in the χ(3) contribution to the medium's dielectric response.In this presentation, two classic continuumconfigurations are discretized in ways that havereceived little attention in the literature: thering cavity and counterpropagating waves. Bothof these systems are defined by distinct types ofboundary condition. Moreover, they are susceptible to spatial instabilities that are ultimatelyresponsible for generating spontaneous patternsfrom arbitrarily small background disturbances.Good agreement between analytical predictionsand simulations will be demonstrated." @default.
- W3012227146 created "2020-03-23" @default.
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- W3012227146 date "2019-08-30" @default.
- W3012227146 modified "2023-09-26" @default.
- W3012227146 title "Discrete nonlinear Schrödinger equations for periodic optical systems :pattern formation in chi(3) coupled waveguide arrays" @default.
- W3012227146 hasPublicationYear "2019" @default.
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