Five-Fold Reduction of Lasing Threshold near the First ΓL-Pseudogap of ZnO Inverse Opals

Author

Michael Scharrer
Heeso Noh
Xiaohua Wu
Mark A. Anderson
Alexey Yamilov, Missouri University of Science and TechnologyFollow
Hui Cao
Robert P.H. Chang

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.

Recommended Citation

M. Scharrer 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, no. 2, pp. 1 - 5, Institute of Physics (IOP), Jan 2010.

The definitive version is available at https://doi.org/10.1088/2040-8978/12/2/024007

Department(s)

Physics

Keywords and Phrases

3D Photonic Crystals; Opal; Random Laser; ZnO

International Standard Serial Number (ISSN)

1464-4258

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 Institute of Physics (IOP), All rights reserved.

Publication Date

01 Jan 2010