We demonstrate that photon motion in a random laser medium with spatially nonuniform gain is, strictly speaking, not diffusion. In this regime, the effective photon residence time in a scattering medium decreases with the increase of gain, which causes a number of interesting features in the random laser behavior.
© 2005 Optical Society of America
M. A. Noginov, J. Novak, and L. Deych, "Photon Motion in a Random Laser Medium with Gain: Is It Diffusion?," in Frontiers in Optics, OSA Technical Digest Series (Optical Society of America, 2005), paper FWQ2.
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