Optical chirality enhancement in twisted metamaterials

Amir Nader Askarpour, Yang Zhao, Andrea Alu

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


An important property of electromagnetic fields which is partly responsible for the interaction between fields and chiral medium is called optical chirality. By enhancing this field property while maintaining constant input power, we are able to increase absorption of circularly polarized light by chiral molecules of a certain handedness. This enhancement is achieved through the use of plasmonic nano-particles in conjunction with twisted metamaterials. Optical chirality enhancement (OCE) has an important application in sensing enantiomers of chiral molecules. Here we present a preliminary scheme to measure enantiomeric excess in mixtures of chiral molecules using OCE boosted by twisted metamaterials.

Original languageEnglish (US)
Title of host publication3rd Conference on Millimeter Wave and Terahertz Technologies, MMWaTT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479965915
StatePublished - Mar 9 2015
Externally publishedYes
Event3rd Conference on Millimeter Wave and Terahertz Technologies, MMWaTT 2015 - Tehran, Iran, Islamic Republic of
Duration: Dec 30 2014Jan 1 2015

Publication series

NameConference on Millimeter-Wave and Terahertz Technologies, MMWaTT
ISSN (Print)2157-0965
ISSN (Electronic)2157-0973


Conference3rd Conference on Millimeter Wave and Terahertz Technologies, MMWaTT 2015
Country/TerritoryIran, Islamic Republic of


  • Enantiomeric Excess
  • Optical Chirality
  • Plasmonics
  • Twisted Metamaterial

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics
  • Communication


Dive into the research topics of 'Optical chirality enhancement in twisted metamaterials'. Together they form a unique fingerprint.

Cite this