Localization of light in coherently amplifying random media

Pradhan, Prabhakar and Kumar, N (1994) Localization of light in coherently amplifying random media. In: Physical Review B: Condensed Matter, 50 (13). pp. 9644-9647.

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Abstract

We derive and analyze the statistics of reflection coefficient of light backscattered coherently from an amplifying and disordered optical medium modeled by a spatially random refractive index having a uniform imaginary part in one dimension. We find enhancement of reflected intensity owing to a synergy between wave confinement by Anderson localization and coherent amplification by the active medium. This is not the same as that due to enhanced optical path lengths expected from photon diffusion in the random active medium. Our study is relevant to the physical realizability of a mirrorless laser by photon confinement due to Anderson localization.

Item Type:	Editorials/Short Communications
Publication:	Physical Review B: Condensed Matter
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	26 Apr 2011 09:56
Last Modified:	26 Apr 2011 09:56
URI:	http://eprints.iisc.ac.in/id/eprint/36483

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