Criterion for Light Localization in Random Amplifying Media

Abstract

Dimensionless conductance for light propagating through a random medium with amplification tends to diverge with an increase of gain. This raises questions on the applicability of the localization criteria based on this quantity. To circumvent this problem, we study the properties of the ratio between the transmission (conductance) and the energy stored in the random medium. We argue that the generalized conductance gG = g (ε0ε)-conductance normalized by the energy buildup (ratio between energy stored in the medium with gain ε to that in the passive system ε0)-may be a convenient quantity on which a localization criterion can be built.

Meeting Name

Proceedings of the Eighth International Conference on Electrical Transport and Optical Properties of Inhomogeneous Media: ETOPIM-8 (2010: Jul.)

Department(s)

Physics

Keywords and Phrases

Anderson Localization; Light Localization; Passive Systems; Random Lasers; Random Medium; Wave Propagation In Random Media; Laser Beams; Random Processes; Amplification

International Standard Serial Number (ISSN)

0921-4526

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 Elsevier, All rights reserved.

Publication Date

01 Jul 2010

Link to Full Text

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