Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Identification of statistical regimes and crossovers in coherent random laser emission

Not Accessible

Your library or personal account may give you access

Abstract

We measure intensity statistics and identify statistical regimes and crossovers in random lasers based on nonresonant feedback. A single parameter extracted from an α-stable Levy fit is used to characterize the intensity distributions in all regimes. Measurements made over a range of scattering strengths, excitation energies, and sample sizes enable us to demarcate three regimes of intensity statistics and the corresponding crossovers. An initial subthreshold Gaussian regime abruptly transits into a Levy regime at the random lasing threshold, which is followed by a continuous gradual crossover toward a second Gaussian regime. We find that the prominence of the Levy regime depends upon the sample size.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Statistical fluctuations of coherent and incoherent intensity in random lasers with nonresonant feedback

Ravitej Uppu and Sushil Mujumdar
Opt. Lett. 35(17) 2831-2833 (2010)

Aerosol-based coherent random laser

Anjani Kumar Tiwari, Ravitej Uppu, and Sushil Mujumdar
Opt. Lett. 37(6) 1053-1055 (2012)

Lévy spectral intensity statistics in a Raman random fiber laser

Jiaqi Li, Han Wu, Zinan Wang, Shengtao Lin, Chongyu Lu, Ernesto P. Raposo, Anderson S. L. Gomes, and Yunjiang Rao
Opt. Lett. 44(11) 2799-2802 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved