VO2-based active terahertz chiral metamaterials

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

Abstract

In this paper, we demonstrate a vanadium dioxide (VO2) integrated chiral metamaterial exhibiting tunable chiroptical responses at terahertz frequencies. Simulated results show that a circular dichroism of ~40° and a maximum polarization rotation of ~200°/λ can be achieved around 0.7 THz with VO2 in its metallic phase. More importantly, the chiroptical response from the hybrid metamaterial varies dramatically with the phase transition determined by the THz conductivity of VO2. Our results reveal that the unification of structured metals and phase-change materials provides the foundation to establish a new paradigm for THz chiroptical metadevices.

Original languageEnglish (US)
Title of host publication2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1615-1616
Number of pages2
ISBN (Electronic)9781728106922
DOIs
StatePublished - Jul 2019
Event2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Atlanta, United States
Duration: Jul 7 2019Jul 12 2019

Publication series

Name2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings

Conference

Conference2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019
CountryUnited States
CityAtlanta
Period7/7/197/12/19

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

Cite this

Kang, L., Campbell, S. D., Werner, P. L., Werner, D. H., & Wang, S. (2019). VO2-based active terahertz chiral metamaterials. In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings (pp. 1615-1616). [8888595] (2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APUSNCURSINRSM.2019.8888595