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Article
Lasing in Disordered Media
Proceedings of SPIE - The International Society for Optical Engineering
  • Hui Cao
  • Alexey Yamilov, Missouri University of Science and Technology
  • Junying Xu
  • Eric W. Seelig
  • Robert P.H. Chang
Abstract

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 interference. This nontraditional way of light confinement has important application to microlasers. The threshold of ranodm 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.

Meeting Name
-Novel In-Plane Semiconductor Lasers II (2003: Jan. 27-29, San Jose, CA)
Department(s)
Physics
Keywords and Phrases
  • Disordered System,
  • Optical Scattering,
  • Random Laser,
  • Amplification,
  • Dye Lasers,
  • Light Scattering,
  • Powders,
  • Resonance,
  • Simulation
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2003 SPIE--The International Society for Optical Engineering, All rights reserved.
Publication Date
1-1-2003
Publication Date
01 Jan 2003
Disciplines
Citation Information
Hui Cao, Alexey Yamilov, Junying Xu, Eric W. Seelig, et al.. "Lasing in Disordered Media" Proceedings of SPIE - The International Society for Optical Engineering Vol. 4995 (2003) p. 134 - 143 ISSN: 0277-786X
Available at: http://works.bepress.com/alexey-yamilov/79/