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APS » Journals » Phys. Rev. Lett. » Volume 101 » Issue 14
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Phys. Rev. Lett. 101, 143901 (2008) [4 pages]

Condensation in Disordered Lasers: Theory, 3D+1 Simulations, and Experiments

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C. Conti1, M. Leonetti2, A. Fratalocchi3,1, L. Angelani4, and G. Ruocco1,2
1Research Center Soft INFM-CNR, c/o Università di Roma “Sapienza,” I-00185, Roma, Italy
2Dipartimento di Fisica, Università di Roma “Sapienza,” I-00185, Roma, Italy
3Centro Studi e Ricerche “Enrico Fermi,” Via Panisperna 89/A, I-00184, Roma, Italy
4Research Center SMC INFM-CNR, c/o Università di Roma “Sapienza,” I-00185, Roma, Italy

Received 30 May 2008; published 30 September 2008

The complex processes underlying the generation of a coherent emission from the multiple scattering of photons and wave localization in the presence of structural disorder are still mostly unexplored. Here we show that a single nonlinear Schrödinger equation, playing the role of the Schwalow-Townes law for standard lasers, quantitatively reproduces experimental results and three-dimensional time-domain parallel simulations of a colloidal laser system.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.143901
DOI:
10.1103/PhysRevLett.101.143901
PACS:
42.55.Zz, 42.65.Sf, 67.85.Bc
 
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