Asymmetric band structure calculations using the plane wave expansion method with time-modulated permittivity

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Abstract

In this work we show how the plane wave expansion method for calculating the band structure of materials with periodic electric permittivity may be extended to calculate the band structure of periodic materials that also possess a sinusoidal time-modulation. The numerical technique is applied to a structure possessing a synthetic linear momentum which causes unidirectional bandgaps to appear in the band structure. Such devices could be of use for tunable magnet-free isolators in integrated photonics platforms.

Original languageEnglish
Title of host publication2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780996007870
DOIs
StatePublished - May 23 2018
Event2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018 - Denver, United States
Duration: Mar 25 2018Mar 29 2018

Publication series

Name2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018

Conference

Conference2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
Country/TerritoryUnited States
CityDenver
Period03/25/1803/29/18

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