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physics.optics2009★ 7 cited
Five-Fold Reduction of Lasing Threshold near the First -Pseudogap of ZnO Inverse Opals
Michael Scharrer, Heeso Noh, Xiaohua Wu +4
We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency. We observe random lasing due to disorder in the structures when the…
physics.optics2007★ 37 cited
Photoluminescence modification by high-order photonic band with abnormal dispersion in ZnO inverse opal
Heeso Noh, Michael Scharrer, Mark A. Anderson +2
We measured the angle- and polarization-resolved reflection and photoluminescence spectra of ZnO inverse opals. Significant enhancement of spontaneous emission is observed. The enh…