skip to main content

SciTech ConnectSciTech Connect

Title: Polarization dependent color switching by extra-ordinary transmission in H-slit plasmonic metasurface

An array of H-shaped subwavelength slits in a plasmonic film has a polarization dependent extra-ordinary transmission due to shape anisotropy. Non-overlapping extra-ordinary transmission bands for the orthogonal linear polarization states of the input light are used to demonstrate a polarization dependent color switch. The fabricated array of submicron sized H-slits on a gold film displayed two transmission bands for the linear x- and y-polarized light at visible (650–850 nm) and near-infra-red (1150–1450 nm) bands, respectively. The relative transmitted light in these two bands can be controlled by changing the linear polarization state of the input radiation from 0° to 90°.
Authors:
;  [1] ; ;  [2]
  1. Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016 (India)
  2. DCMP and MS, Tata Institute of Fundamental Research, Colaba, Mumbai 400005 (India)
Publication Date:
OSTI Identifier:
22217782
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; COLOR; POLARIZATION; THIN FILMS; TRANSMISSION