Experimental and theoretical investigation of statistical regimes in random laser emission

@article{Ignesti2013ExperimentalAT,
  title={Experimental and theoretical investigation of statistical regimes in random laser emission},
  author={Emilio Ignesti and Federico Tommasi and Lorenzo Fini and Stefano Lepri and Vivekananthan Radhalakshmi and Diederik Sybolt Wiersma and Stefano Cavalieri},
  journal={Physical Review A},
  year={2013},
  volume={88},
  pages={033820}
}
We present a theoretical and experimental study aimed at characterizing statistical regimes in a random laser. Both the theoretical simulations and the experimental results show the possibility of three region of fluctuations increasing the pumping energy. An initial Gaussian regime is followed by a L\'evy statistics and Gaussian statistic is recovered again for high pump pulse energy. These different statistical regimes are possible in a weakly diffusive active medium, while the region of L… Expand

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References

SHOWING 1-10 OF 19 REFERENCES
"J."
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)Expand
Phys
  • Rev. Lett., 110, 230603
  • 2013
New J
  • Phys.14, 113031
  • 2012
Phys
  • Rev. A 85, 043801
  • 2012
Nat
  • Phys.4, 359
  • 2008
Phys
  • Rev. A 75, 063820
  • 2007
Phys
  • Rev. A 76, 033807
  • 2007
Rev
  • Lett 98, 143902
  • 2007
H
  • Ramachandran and N.Kumar, Fluc. Noise Lett. 6, L95
  • 2006
W
  • Fang, A.Yamilov, A.A. Chabanov, A.A. Asatryan, L.C. Botten and H.Cao Phys. Rev. A 74, 053812
  • 2006
...
1
2
...