Abstract
An experimental study of the optical properties of two types of metal-dielectric composites based on opal matrices was carried out: 1) layered structures obtained by successive deposition of metal and dielectric films on a monolayer of opal globules, where extraordinary transmission and extraordinary absorption of light were detected due to the excitation of surface plasmon polaritons of various types; 2) "massive" opal samples, which were infilled with metal by electrothermodiffusion, where an asymmetric form of Bragg resonance curves was observed, due to the Fano resonance.
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