Phase-change Materials in Multifunctional Reconfigurable Metasurfaces

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metasurfaces, 2D periodic subwavelength electromagnetic resonant structures, enable diverse optical responses in ultrathin geometries. By integrating phase-change materials (PCMs) with optically or thermally tunable material properties into the unit cell geometries, multiple functionalities can be achieved in a single reconfigurable device. However, the extra degrees of freedom offered by PCMs also presents a difficulty, especially since each state of the PCM requires a unique combination of multiple resonances to achieve a desired functionality. To this end, multi-objective optimization algorithms offer the possibility to directly inverse design reconfigurable devices by enabling multiple functionalities to be simultaneously optimized. These devices usually consist of counterintuitively complicated structures that provide novel resonance mechanisms.

Original languageEnglish (US)
Title of host publication2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages819-820
Number of pages2
ISBN (Electronic)9781728166704
DOIs
StatePublished - Jul 5 2020
Event2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Virtually, Toronto, Canada
Duration: Jul 5 2020Jul 10 2020

Publication series

Name2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings

Conference

Conference2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020
CountryCanada
CityVirtually, Toronto
Period7/5/207/10/20

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation

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