Improved transmittance in metal-dielectric metamaterials using diffraction grating

Journal Article · Mon Apr 28 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4875555· OSTI ID:22267703

De Luca, A. ^[1]

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1. Department of Physics and CNR-IPCF UOS di Cosenza, University of Calabria, Rende 87036 (Italy)

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.

• OSTI ID: 22267703
• Journal Information: Applied Physics Letters, Vol. 104, Issue 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM OXIDES
DIELECTRIC MATERIALS
DIFFRACTION GRATINGS
GOLD
SILICON OXIDES
TRANSMISSION