Stimulated light emission in dense fog confined inside a porous glass matrix

E Gross; D Kovalev; N Kunzner; J Diener; F Koch; M Fujii

doi:10.1103/PhysRevLett.89.267401

Stimulated light emission in dense fog confined inside a porous glass matrix

E Gross, D Kovalev, N Kunzner, J Diener, F Koch, M Fujii

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We report on light amplification through stimulated emission in a dielectrically disordered medium. Liquid fragments confined in the solid matrix of porous quartz layers result in a random fluctuation of the dielectric function, and dye molecules embedded in the voids yield optical gain. The level of opacity is tunable by the ambient vapor pressure of the dielectric substance. In the multiple scattering regime, a strong intensity enhancement of the dye emission accompanied by significant spectral narrowing is observed above the threshold for a layer being in the opalescence state.

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.89.267401
Publication status	Published - 2002

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title = "Stimulated light emission in dense fog confined inside a porous glass matrix",

abstract = "We report on light amplification through stimulated emission in a dielectrically disordered medium. Liquid fragments confined in the solid matrix of porous quartz layers result in a random fluctuation of the dielectric function, and dye molecules embedded in the voids yield optical gain. The level of opacity is tunable by the ambient vapor pressure of the dielectric substance. In the multiple scattering regime, a strong intensity enhancement of the dye emission accompanied by significant spectral narrowing is observed above the threshold for a layer being in the opalescence state.",

author = "E Gross and D Kovalev and N Kunzner and J Diener and F Koch and M Fujii",

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AU - Gross, E

AU - Kovalev, D

AU - Kunzner, N

AU - Diener, J

AU - Koch, F

AU - Fujii, M

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AB - We report on light amplification through stimulated emission in a dielectrically disordered medium. Liquid fragments confined in the solid matrix of porous quartz layers result in a random fluctuation of the dielectric function, and dye molecules embedded in the voids yield optical gain. The level of opacity is tunable by the ambient vapor pressure of the dielectric substance. In the multiple scattering regime, a strong intensity enhancement of the dye emission accompanied by significant spectral narrowing is observed above the threshold for a layer being in the opalescence state.

U2 - 10.1103/PhysRevLett.89.267401

DO - 10.1103/PhysRevLett.89.267401

M3 - Article

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JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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