Chiral-selective plasmonic metasurface absorbers operating at visible frequencies

Bin Tang*, Zhongyang Li, Edgar Palacios, Zizhuo Liu, Serkan Butun, Koray Aydin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

148 Scopus citations

Abstract

We demonstrate theoretically and experimentally a chiral-selective plasmonic absorber by utilizing eng -shaped-resonators in the visible frequencies. Our metasurface design enables chiral-selective absorption bands, in which absorption peaks for left-handed circularly polarized and right-handed circularly polarized occur at different resonance wavelengths resulting in significant circular dichroism (CD). Both simulated and measured absorption spectra exhibit maximum absorptions exceeding 80% associated with a CD value of ∼0.5. Such a chiral plasmonic metasurface absorber with high performance could find applications in optical filters, non-linear optics, thermal emitters, and hot-electron collection devices.

Original languageEnglish (US)
Article number7803536
Pages (from-to)295-298
Number of pages4
JournalIEEE Photonics Technology Letters
Volume29
Issue number3
DOIs
StatePublished - Feb 1 2017

Funding

This work was supported in part by the Jiangsu Government Scholarship for Oversea Studies under Grant JS-2014-318, in part by the Qing Lan Project, in part by the Natural Science Foundation of Jiangsu Province under Grant BK20141169, and in part by the Materials Research Science and Engineering Center under Grant DMR-1121262 through the Northwestern University. Use of the Center for Nanoscale Materials at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357.

Keywords

  • Circularly polarized light
  • circular dichroism
  • metasurface
  • plasmonic absorber
  • visible frequency

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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