Open Access System for Information Sharing

Login Library

 

Article
Cited 72 time in webofscience Cited 74 time in scopus
Metadata Downloads

Giant chiro-optical responses in multipolar-resonances-based single-layer dielectric metasurfaces SCIE SCOPUS

Title
Giant chiro-optical responses in multipolar-resonances-based single-layer dielectric metasurfaces
Authors
Khaliq, Hafiz SaadKim, InkiZahid, AimaKim, JoohoonLee, TaejunBadloe, TrevonKim, YeseulZubair, MuhammadRiaz, KashifMehmood, Muhammad QasimRho, Junsuk
Date Issued
2021-09
Publisher
OSA Publishing
Abstract
Chiro-optical effects offer a wide range of potential applications in nanophotonics, such as advanced imaging and molecular sensing and separation. Flat single-layer metasurfaces composed of subwavelength meta-atoms have gained significant attention due to their exceptional characteristics in light -matter interactions. Although meta-surface-based devices have manipulated electromagnetic waves, the compact on-chip realization of giant chiro-optical effects remains a challenge at optical frequencies. In this work, we experimentally and numerically demonstrate an all-dielectric metasurface to realize large chiro-optical effects in the visible regime. Notably, the proposed strategy of utilizing achiral nanofins instead of conventional chiral structures provides an extra degree of design freedom. The mutual coupling between carefully engineered nanofins produces constructive and destructive interference, leading to the asymmetric transmission of 70% and average circular dichroism exceeding 60%. We investigate the underlying mechanism behind the chiro-optical effects using the theory of multipolar decomposition. The proposed design mechanism maximizes the chiro-optical response through a single-layer metasurface with potential applications in high-efficiency integrated ultrathin polarization rotators and shapers, chiral polarizers for optical displays, chiral beam splitters, and chiral sensors. (C) 2021 Chinese Laser Press
URI
https://oasis.postech.ac.kr/handle/2014.oak/109113
DOI
10.1364/PRJ.424477
ISSN
2327-9125
Article Type
Article
Citation
Photonics Research, vol. 9, no. 9, page. 1667 - 1674, 2021-09
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

노준석RHO, JUNSUK
Dept of Mechanical Enginrg
Read more

Views & Downloads

Browse