A Discontinuous Galerkin Time Domain Method for Plasmonics with a Nonlocal Dispersion Model

Abstract : — We present recent advances of the development on Discontinuous Galerkin Time Domain (DGTD) solvers for computational nanophotonics, focusing on metallic nanostructures irradiated by laser pulses. By this means, we firstly discuss an analytical nonlocal dispersion model for the electron gas which is necessary in order to account for spatial dispersion for structures of the size of 2 nm to 25 nm. Subsequently, we deal with the numerical modeling of this nonlocal model when coupled to 3D Maxwell's equations in time domain. We conclude by assessing our implementation with analytical solutions and provide selected numerical examples.
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Submitted on : Thursday, January 4, 2018 - 4:22:15 PM
Last modification on : Wednesday, December 4, 2019 - 10:56:59 AM

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Nikolai Schmitt, Claire Scheid, Jonathan Viquerat, Stephane Lanteri, A Moreau. A Discontinuous Galerkin Time Domain Method for Plasmonics with a Nonlocal Dispersion Model. PIERS 2017 - 38th Progress In Electromagnetics Research Symposium, May 2017, St. Petersburg, Russia. ⟨hal-01675601⟩

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