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arXiv · 0710.5102

Photoluminescence modification by high-order photonic band with abnormal dispersion in ZnO inverse opal

Heeso Noh·Michael Scharrer·Mark A. Anderson·Robert P. H. Chang·Hui Cao
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Abstract

We measured the angle- and polarization-resolved reflection and photoluminescence spectra of ZnO inverse opals. Significant enhancement of spontaneous emission is observed. The enhanced emission not only has good directionality but also can be linearly polarized. A detailed theoretical analysis and numerical simulation reveal that such enhancement is caused by the abnormal dispersion of a high-order photonic band. The frozen mode at a stationary inflection point of a dispersion curve can strongly modify the intensity, directionality and polarization of spontaneous emission.

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Heeso Noh, Michael Scharrer, Mark A. Anderson, Robert P. H. Chang, Hui Cao. 2008-01-18. Photoluminescence modification by high-order photonic band with abnormal dispersion in ZnO inverse opal. https://doi.org/10.1103/physrevb.77.115136

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