Dynanmic nonlinear effect on lasing in random media

H. Cao, A. Yamilov, B. Liu, J. Y. Xu, Y. Ling, E. Seelig, Robert P. H. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM.W. McCall, G. Dewar
Pages216-225
Number of pages10
Volume5508
DOIs
Publication statusPublished - 2004
EventComplex Mediums V: Light and Complexity - Denver, CO, United States
Duration: Aug 4 2004Aug 5 2004

Other

OtherComplex Mediums V: Light and Complexity
CountryUnited States
CityDenver, CO
Period8/4/048/5/04

Fingerprint

lasing
Lasers
lasers
thresholds
Light scattering
Photonics
micrometers
Energy gap
light scattering
trapping
disorders
photonics
Scattering
Feedback
interference
Defects
defects
scattering

Keywords

  • Disordered system
  • Optical scattering
  • Random laser

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Cao, H., Yamilov, A., Liu, B., Xu, J. Y., Ling, Y., Seelig, E., & Chang, R. P. H. (2004). Dynanmic nonlinear effect on lasing in random media. In M. W. McCall, & G. Dewar (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5508, pp. 216-225). [30] https://doi.org/10.1117/12.559047

Dynanmic nonlinear effect on lasing in random media. / Cao, H.; Yamilov, A.; Liu, B.; Xu, J. Y.; Ling, Y.; Seelig, E.; Chang, Robert P. H.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M.W. McCall; G. Dewar. Vol. 5508 2004. p. 216-225 30.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cao, H, Yamilov, A, Liu, B, Xu, JY, Ling, Y, Seelig, E & Chang, RPH 2004, Dynanmic nonlinear effect on lasing in random media. in MW McCall & G Dewar (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5508, 30, pp. 216-225, Complex Mediums V: Light and Complexity, Denver, CO, United States, 8/4/04. https://doi.org/10.1117/12.559047
Cao H, Yamilov A, Liu B, Xu JY, Ling Y, Seelig E et al. Dynanmic nonlinear effect on lasing in random media. In McCall MW, Dewar G, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5508. 2004. p. 216-225. 30 https://doi.org/10.1117/12.559047
Cao, H. ; Yamilov, A. ; Liu, B. ; Xu, J. Y. ; Ling, Y. ; Seelig, E. ; Chang, Robert P. H. / Dynanmic nonlinear effect on lasing in random media. Proceedings of SPIE - The International Society for Optical Engineering. editor / M.W. McCall ; G. Dewar. Vol. 5508 2004. pp. 216-225
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