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Giant enhancement of the chiro-optic response of chiral plasmonic media using structured light

  • SUNY Buffalo
  • University of Dayton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose an approach to achieve a great enhancement and broad spectral tunability of the chiro-optic response of plasmonic metasurfaces by exploiting their interaction with light of complex polarization, endowed with both spin (SAM) and orbital angular momentum (OAM). As a proof of principle, we employ full-wave computational analysis to investigate the response of a circularly polarized transverse Laguerre-Gaussian beam having a structured wavefront, incident on a chiral metasurface composed of a two-dimensional array of gold nanohelix meta-atoms. For the first time, our analysis reveals unprecedented amplification of circular dichroism, which is a manifestation of the total angular momentum of incident light being enantio-selectively transferred to the chiral medium.

Original languageEnglish
Title of host publicationTechConnect Briefs 2018 - Informatics, Electronics and Microsystems
EditorsMatthew Laudon, Fiona Case, Bart Romanowicz, Fiona Case
PublisherTechConnect
Pages201-204
Number of pages4
ISBN (Electronic)9780998878256
StatePublished - 2018
Event11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo,the 2018 SBIR/STTR Spring Innovation Conference, and the Defense TechConnect DTC Spring Conference - Anaheim, United States
Duration: May 13 2018May 16 2018

Publication series

NameTechConnect Briefs 2018 - Advanced Materials
Volume4

Conference

Conference11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo,the 2018 SBIR/STTR Spring Innovation Conference, and the Defense TechConnect DTC Spring Conference
Country/TerritoryUnited States
CityAnaheim
Period05/13/1805/16/18

Keywords

  • Biosensing
  • Chiral metasurfaces
  • Circular dichroism
  • Plasmonics
  • Structured light

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