Planewave scattering by topologically insulating surface states on a spherical surface

Muhammad Faryad, Akhlesh Lakhtakia

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

Abstract

Planewave scattering from a topological insulating (TI) sphere was studied when the relative permittivity and relative permeability of that sphere are both equal to unity, in order to examine scattering by topologically insulating surface states (TISS) by themselves. The TISS were modeled via surface charge and current densities quantitated through a surface-admittance parameter. The results indicate that the extinction and total-scattering efficiencies approach the corresponding efficiencies of a perfect electrically conducting (PEC) sphere of the same size when the surface-admittance parameter becomes very large. The extinction, total-scattering, and forward-scattering efficiencies remain smaller than the corresponding efficiencies of the PEC sphere. The backscattering efficiency can be either smaller or greater than that of the PEC sphere, depending upon the electrical size of the scattering spherical surface. By themselves, the TISS do not contribute to absorption.

Original languageEnglish (US)
Title of host publication2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2411-2412
Number of pages2
ISBN (Electronic)9781538671023
DOIs
StatePublished - Jan 1 2018
Event2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Boston, United States
Duration: Jul 8 2018Jul 13 2018

Publication series

Name2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings

Conference

Conference2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018
CountryUnited States
CityBoston
Period7/8/187/13/18

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

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    Faryad, M., & Lakhtakia, A. (2018). Planewave scattering by topologically insulating surface states on a spherical surface. In 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings (pp. 2411-2412). [8608562] (2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APUSNCURSINRSM.2018.8608562