Spectral properties of a two-dimensional resonant metal-dielectric photonic crystal


Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1134/S0030400X12030204

Ключевые слова: Continuous spectrum, Cylindrical holes, Dielectric permittivities, Distribution of the electromagnetic field, Geometric parameter, In-vacuum, Metallic nanospheres, Nanocomposite matrix, Spectral properties, Square lattices, System change, Transmission band, Transmission spectrums, Transparent matrix, Two-dimensional photonic crystals, Crystal lattices, Energy gap, Nanocomposites, Natural frequencies, Permittivity, Photonic crystals, Metallic matrix composites

Аннотация: We have studied the transmission spectra of resonant two-dimensional photonic crystals of two types, one of which consists of nanocomposite cylinders that form a square lattice in vacuum and the other of which consists of cylindrical holes that form a square lattice in nanocomposite matrix. The nanocomposite consists of metallic naПоказать полностьюnospheres that are dispersed in a transparent matrix and is characterized by an effective resonant dielectric permittivity. We show that, depending on the position of the resonant frequency of the nanocomposite with respect to the boundaries of the band gap, there arises either an additional transmission band in the transmission spectrum in the band gap or an additional band gap in the continuous spectrum of the photonic crystal. As the structural and geometric parameters of the system change, both the additional transmission band and the additional band gap are considerably modified. We analyze particular features of the spatial distribution of the electromagnetic field intensity in crystals. The considered effects can be used to extend the possibilities of creating new photonic crystals with specified properties.

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Выпуск журнала: Vol. 112, Is. 4

Номера страниц: 585-593

ISSN журнала: 0030400X

Место издания: NEW YORK



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