Numerical Investigation of Random Laser based on “Lucky photon” model

A. Sharma¹

Section:Research Paper, Product Type: Journal-Paper
Vol.9 , Issue.1 , pp.1-4, Feb-2021

Online published on Feb 28, 2021

Copyright © A. Sharma . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The spectral behavior of a random lasing system is calculated using numerical calculations. The random lasing system comprises of TiO2 powder dispersed in Rhodamine 6 G dye solution. In the present work, the random lasing action is simulated by using lucky-photon model, which does not take into account the interference effect. By tracking individual photon and repeating the same several times, we found that the intensity fluctuation at a particular wavelength shows Levy like distribution with power law parameter m = 1.62. Some exponential decay is observed at higher output intensity, which is yet need to be resolved. Results show that with increasing particle diameter intensity decreases and intensity is higher for higher particle density. The difference between them decreases as an increase in the particle diameter.

Key-Words / Index Term :
Random laser, lucky photon model, Levy distribution, Gaussian distribution.

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