This article is cited in 4 papers

Proceedings of the All-Russian Conference with Elements of the Scientific School for the Youth "Opal-Like Structures" (St. Petersburg, Russia, May 12-14, 2010)

Interference of additional modes in spectra of opal-like photonic crystals in the multiple diffraction regime

V. G. Fedotov^ab, A. V. Sel'kin<sup>ab

a</sup> Saint Petersburg State University
^b Ioffe Institute, St. Petersburg

Abstract: The mechanisms of formation of Bragg reflectance and transmittance spectra have been investigated for films of three-dimensional opal-like photonic crystals. Attention has been drawn to the fact that the spectra exhibit an additional short-period interference structure of the novel type due to the multiple Bragg diffraction of light. The spectra have been calculated in the framework of the dynamical three-wave diffraction model taking into account strong spatial modulation of the dielectric function. It has been found that short-period oscillations appear in the spectra due to the spatial quantization of additional modes with a low group velocity.

 English version: Physics of the Solid State, 2011, 53:6, 1140–1144

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