2 August 2004 Dynamic nonlinear effect on lasing in random media
Author Affiliations +
We review our recent work on lasing in active random media. Light scattering, which had been regarded detrimental to lasing action for a long time, actually provided coherent feedback for lasing. We also trapped laser light in micrometer-sized random media. The trapping was caused by disorder-induced scattering and inference. This nontraditional way of light confinement has important application to microlasers. The threshold of random laser can be reduced by incorporating some degree of order into an active random medium. Our calculation result shows that by optimizing the degree of order one can dramatically reduce the threshold of random laser to the values comparable to those of photonic bandgap defect lasers.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hui Cao, Hui Cao, Alexey Yamilov, Alexey Yamilov, Bo Liu, Bo Liu, Jun-Ying Xu, Jun-Ying Xu, Yong Ling, Yong Ling, Eric Seelig, Eric Seelig, Robert P. H. Chang, Robert P. H. Chang, "Dynamic nonlinear effect on lasing in random media", Proc. SPIE 5508, Complex Mediums V: Light and Complexity, (2 August 2004); doi: 10.1117/12.559047; https://doi.org/10.1117/12.559047


Random lasing in nanocrystalline ZnO powders
Proceedings of SPIE (February 25 2010)
Random lasing in disordered arrays of ZnO nanorods
Proceedings of SPIE (September 12 2011)
Lasing in disordered media
Proceedings of SPIE (July 02 2003)

Back to Top