Article
Five-Fold Reduction of Lasing Threshold near the First ΓL-Pseudogap of ZnO Inverse Opals
Journal of Optics A: Pure and Applied Optics
Abstract
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.
Department(s)
Physics
Keywords and Phrases
- 3D Photonic Crystals,
- Opal,
- Random Laser,
- ZnO
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2010 Institute of Physics (IOP), All rights reserved.
Publication Date
1-1-2010
Publication Date
01 Jan 2010
Disciplines
Citation Information
Michael Scharrer, Heeso Noh, Xiaohua Wu, Mark A. Anderson, et al.. "Five-Fold Reduction of Lasing Threshold near the First ΓL-Pseudogap of ZnO Inverse Opals" Journal of Optics A: Pure and Applied Optics Vol. 12 Iss. 2 (2010) p. 1 - 5 ISSN: 1464-4258 Available at: http://works.bepress.com/alexey-yamilov/93/