Lasing in disordered media

H. Cao; A. Yamilov; J. Y. Xu; E. Seelig; R. P.H. Chang

doi:10.1117/12.479757

Lasing in disordered media

H. Cao^*, A. Yamilov, J. Y. Xu, E. Seelig, R. P.H. Chang

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

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 language	English (US)
Pages (from-to)	134-143
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4995
DOIs	https://doi.org/10.1117/12.479757
State	Published - Sep 29 2003
Event	Novel In-Plane Semiconductor Lasers II - San Jose, CA, United States Duration: Jan 27 2003 → Jan 29 2003

Keywords

Disordered system
Optical scattering
Random laser

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.479757

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title = "Lasing in disordered media",

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.",

keywords = "Disordered system, Optical scattering, Random laser",

author = "H. Cao and A. Yamilov and Xu, {J. Y.} and E. Seelig and Chang, {R. P.H.}",

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T1 - Lasing in disordered media

AU - Cao, H.

AU - Yamilov, A.

AU - Xu, J. Y.

AU - Seelig, E.

AU - Chang, R. P.H.

PY - 2003/9/29

Y1 - 2003/9/29

N2 - 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.

AB - 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.

KW - Disordered system

KW - Optical scattering

KW - Random laser

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EP - 143

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Novel In-Plane Semiconductor Lasers II

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ER -

Lasing in disordered media

Abstract

Keywords

ASJC Scopus subject areas

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