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 language | English (US) |
|---|---|
| Title of host publication | 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2411-2412 |
| Number of pages | 2 |
| ISBN (Electronic) | 9781538671023 |
| DOIs | |
| State | Published - Jan 10 2019 |
| Event | 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Boston, United States Duration: Jul 8 2018 → Jul 13 2018 |
Publication series
| Name | 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings |
|---|
Conference
| Conference | 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 |
|---|---|
| Country | United States |
| City | Boston |
| Period | 7/8/18 → 7/13/18 |
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All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Instrumentation
- Radiation
Cite this
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Planewave scattering by topologically insulating surface states on a spherical surface. / Faryad, Muhammad; Lakhtakia, Akhlesh.
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., 2019. p. 2411-2412 8608562 (2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Planewave scattering by topologically insulating surface states on a spherical surface
AU - Faryad, Muhammad
AU - Lakhtakia, Akhlesh
PY - 2019/1/10
Y1 - 2019/1/10
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85061934043&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061934043&partnerID=8YFLogxK
U2 - 10.1109/APUSNCURSINRSM.2018.8608562
DO - 10.1109/APUSNCURSINRSM.2018.8608562
M3 - Conference contribution
AN - SCOPUS:85061934043
T3 - 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings
SP - 2411
EP - 2412
BT - 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -