Effective photonic pseudogap of a two-phase composite opaline photonic crystal |
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Authors: | LK Teh KH Yeo CC Wong |
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Institution: | (1) School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore, Singapore |
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Abstract: | We report the observation of suppression of the green photoluminescence from an optically active ZnO-infiltrated composite
opal fabricated by electrodeposition templated on a self-assembled polystyrene opal. This is interpreted to be the consequence
of an effective photonic pseudogap formed by the composite opaline photonic crystal. The effective pseudogap’s effect on emission
of the composite opal, one ‘raw’ and one ‘inverted’, is simply the addition of the effect of each component opal, with no
noticeable interaction effect, thus suggesting a simple route for engineering the photonic behavior of heterogeneous photonic
crystals.
PACS 42.70.Qs; 78.55.-m; 78.66.Hf |
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Keywords: | |
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