Journal
PHYSICAL REVIEW LETTERS
Volume 86, Issue 20, Pages 4524-4527Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.4524
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We have measured the photon statistics of random Lasers with resonant feedback. With an increase of the pump intensity, the photon number distribution in a single mode changes continuously from Bose-Einstein distribution at the threshold to Poisson distribution well above the threshold. The second-order correlation coefficient drops gradually from 2 to 1. By comparing the photon statistics of a random laser with resonant feedback and that of a random laser with nonresonant feedback, we illustrate very different lasing mechanisms for the two types of random lasers.
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