Abstract
We have studied the effect of the stop band and coupled photonic modes on the visible luminescence of synthetic opal photonic crystals. The results demonstrate that the position of the photonic stop band in the luminescence spectrum of opal depends on the nanosphere diameter. Optical measurements have been used to determine the refractive index of the photonic crystals and the silica sphere diameter. We have assessed the effect of coupled modes in opal on its intrinsic luminescence spectrum. Coupled modes of visible light in opal can be visualized by applying a matte sapphire plate to the opal surface.
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Original Russian Text © A.N. Gruzintsev, G.A. Emel’chenko, V.M. Masalov, E.E. Yakimov, 2009, published in Neorganicheskie Materialy, 2009, Vol. 45, No. 3, pp. 302–305.
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Gruzintsev, A.N., Emel’chenko, G.A., Masalov, V.M. et al. Effect of nanosphere size on the luminescence of synthetic opal. Inorg Mater 45, 260–263 (2009). https://doi.org/10.1134/S002016850903008X
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DOI: https://doi.org/10.1134/S002016850903008X