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Title: Improved transmittance in metal-dielectric metamaterials using diffraction grating

In this Letter, we experimentally demonstrate the possibility to obtain an improved transmittance from metal-dielectric multilayer metamaterials at optical frequencies. In order to achieve this goal, a properly designed one-dimensional silver diffraction grating has been fabricated on top of two different multilayer structures such as Au/Al{sub 2}O{sub 3} and Au/SiO{sub 2}. It has been observed that the improved transmittance at various resonant wavelength bands is possible from the metal-dielectric metamaterials when it is coupled with a properly designed metallic diffraction grating. The obtained results can be expected to find variety of potential applications including high-efficiency solar cells.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, Ohio 44106-7079 (United States)
  2. Department of Physics and CNR-IPCF UOS di Cosenza, University of Calabria, Rende 87036 (Italy)
  3. (Italy)
Publication Date:
OSTI Identifier:
22267703
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM OXIDES; DIELECTRIC MATERIALS; DIFFRACTION GRATINGS; GOLD; SILICON OXIDES; TRANSMISSION