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Phys. Rev. A 64, 063808 (2001) [8 pages]

Investigation of random lasers with resonant feedback

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Y. Ling1, H. Cao1,*, A. L. Burin1,2, M. A. Ratner2, X. Liu3, and R. P. H. Chang3
1Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3112
2Department of Chemistry, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3113
3Department of Materials Science and Engineering, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3116

Received 2 October 2000; published 14 November 2001

This paper presents a detailed experimental study of random lasers with resonant feedback. The dependences of the lasing threshold and the number of lasing modes on the transport mean free path, the pump area, and the sample size are measured. An analytical model based on the concept of quasistates is developed to explain the behaviors of random lasers.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.063808
DOI:
10.1103/PhysRevA.64.063808
PACS:
42.55.Rz, 42.55.Ah, 42.25.Dd

*Email address: h-cao@northwestern.edu

 
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