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Modeling of optical properties of nanosize metal-dielectric gratings within the eigenmode approach

Gorkunov M.and Podivilov, E. and Sturman, B. (2010) Modeling of optical properties of nanosize metal-dielectric gratings within the eigenmode approach. Nanotechnologies in Russia, 5 (3). pp. 259-265.

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Official URL: http://dx.doi.org/10.1134/S1995078010030146

Abstract

Abstract We show that the wide-spread concept of optical eigenmodes in lossless waveguide systems, which assumes the separation into propagating and evanescent modes, has to be revised in the case of metal-dielectric structures. In addition, there exists a sequence of new eigenstates with complex values of the propagation constant. Taking these anomalous modes into account we have developed an original approach for the modeling of optical properties of subwavelength metal gratings with nanosize slits. The obtained spectra of transmittance and reflectance demonstrate the application potential of such structures for efficient spectral filtration of optical signals.

Item Type:Article
ID Code:9181
Deposited By:Prof. Alexey Ivanov
Deposited On:13 May 2010 12:53
Last Modified:13 May 2010 13:19

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