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Proceedings Paper

Optical propagation in anisotropic metamaterials
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Paper Abstract

Anisotropic metamaterials are widely used in the field of optics because of their unique electromagnetic properties. These metamaterials can be made from multilayer metallo-dielectric structures. Such stacks can be represented as an anisotropic bulk medium using effective medium theory. Optical properties of anisotropic media are mostly described in terms of effective parameters such as permittivity and permeability, or alternatively, refractive index and characteristic impedance. These properties depend not only on the wavelength and polarization but also the direction of the optical wave-vector. In this work optical wave propagation through such anisotropic media is studied in detail. The Berreman 4 × 4 matrix along with appropriate boundary conditions is used to determine all electric and magnetic fields inside and outside the structure. The overall transmission and reflection are investigated as a function of the thickness of each layer (metal/dielectric), the number of layers, and the wavelength for oblique incidence. The validity of the effective medium theory is also investigated by changing the thickness and number of layers.

Paper Details

Date Published: 22 February 2017
PDF: 8 pages
Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100981F (22 February 2017); doi: 10.1117/12.2255757
Show Author Affiliations
Rudra Gnawali, Univ. of Dayton (United States)
Partha P. Banerjee, Univ. of Dayton (United States)
Joseph W. Haus, Univ. of Dayton (United States)
Dean R. Evans, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 10098:
Physics and Simulation of Optoelectronic Devices XXV
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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