Calculating Scattering Spectra using Time-domain Modeling of Time-modulated Systems

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Abstract

Obtaining agreement between theoretical predictions that assume single-frequency excitation and finite-difference time-domain (FDTD) simulations that employ broadband excitation in the presence of time-varying materials is challenging due to frequency mixing. A simple solution is proposed to reduce artifacts in FDTD-calculated spectra from the frequency mixing induced by harmonic refractive index modulation applicable to scenarios in which second order and higher harmonics are negligible. Advantages of the proposed method are its simplicity and applicability to arbitrary problems including resonant structures.

Original languageEnglish
Title of host publication2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781733509602
DOIs
StatePublished - Jul 2020
Event2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020 - Virtual, Monterey, United States
Duration: Jul 27 2020Jul 31 2020

Publication series

Name2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020

Conference

Conference2020 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2020
Country/TerritoryUnited States
CityVirtual, Monterey
Period07/27/2007/31/20

Keywords

  • cavity resonators
  • finite-difference time-domain method
  • time-varying circuits

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