Abstract
Mesoporous one-dimensional photonic crystals based on aluminum oxide have been synthesized by electrochemical etching method. Reflection spectra of the obtained mesoporous samples in a wide spectral range that covers several band gaps are presented. Microscopic parameters of photonic crystals are calculated and corresponding reflection spectra for the first six band gaps are presented.
Highlights
A photograph of one of the samples obtained for frontal shooting configuration is shown at Fig. 1a
The spectra of broadband optical radiation reflected from the surface of photonic crystal on anodic Al2O3 were recorded
The dependence of reflection coefficient on wavelength was calculated with the use of the obtained dispersion relation with the dispersion of the refractive indices of the layers taken into account (Fig. 2b)
Summary
A photograph of one of the samples obtained for frontal shooting configuration is shown at Fig. 1a. Photonic-crystal aluminum oxide film changes its color (iridescent) when we change the viewing angle.
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