Five-fold reduction of lasing threshold near the first Γl-pseudogap of ZnO inverse opals

Citation data:

Journal of Optics A: Pure and Applied Optics, ISSN: 1464-4258, Vol: 12, Issue: 2, Page: 1

Publication Year:
Usage 39
Abstract Views 39
Captures 20
Readers 19
Exports-Saves 1
Citations 5
Citation Indexes 5
arXiv Id:
Repository URL:;
Scharrer, Michael; Noh, Heeso; Wu, Xiaohua; Anderson, Mark A.; Yamilov, Alexey; Cao, Hui; Chang, Robert P.H.
IOP Publishing; Institute of Physics (IOP)
Physics and Astronomy; 3D Photonic Crystals; Opal; Random Laser; ZnO; 3D Photonic Crystals; Opal; Random Laser; ZnO; Physics; Physics - Optics
article description
We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency range. We observe random lasing due to disorder in the structures when the photonic pseudogaps are located away from the ZnO gain spectrum. Tuning the first ΓL-pseudogap to the gain peak leads to a five-fold reduction in lasing threshold and a frequency shift of the lasing modes due to the enhanced confinement of light. © 2010 IOP Publishing Ltd.