Transmission and reflection properties of two-dimensional finite metal crystals
Institute of Fundamental Technological Research, Polish Academy of Sciences, Adolfa Pawiñskiego 5b, 02-106 Warsaw, Poland
Received: 12 November 2016
Published online: 6 July 2017
Optical characteristics of a finite two-dimensional silver stripe photonic crystal of a square lattice are numerically analysed with use of multilayer Rigorous Coupled Wave Analysis. Qualitative changes in optical response of the crystal originated from modifications of the thickness and filling factors of each layer and the polarization direction of the incident wave are shown. The crystal manifests its various characteristics in wideband or narrowband reflection and transmission, while absorption remains low. The behaviour of the crystal is determined by its structure geometry yielding excitation of localized plasmons and collective modes together with interactions between them. The optical response of the square lattice structure is also compared with the response of a triangular lattice crystal.
Key words: Optical Phenomena and Photonics
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