Mode selectivity of random lasing in one-dimensional model

Seiji Takeda; Minoru Obara

doi:10.1117/12.698544

14 February 2007 Mode selectivity of random lasing in one-dimensional model

Seiji Takeda, Minoru Obara

Proceedings Volume 6452, Laser Resonators and Beam Control IX; 645217 (2007) https://doi.org/10.1117/12.698544
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

We demonstrate the selective modal oscillation behavior of Random Lasing (RL) by using a one-dimensional RL model. This calculation model consists of "one-dimensional scattering model", rate equations, and "cavity term". Using this model, we investigate how the number and the kinds of modes change as the "randomness" of the medium changes. Calculation results indicate that there exists the region of "randomness" where the dynamics of emission spectrum shows selective modal oscillations: certain modes strongly oscillate and shape of the emission spectrum drastically changes.

Citation Download Citation

Seiji Takeda and Minoru Obara "Mode selectivity of random lasing in one-dimensional model", Proc. SPIE 6452, Laser Resonators and Beam Control IX, 645217 (14 February 2007); https://doi.org/10.1117/12.698544

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KEYWORDS

Reflectivity

Light scattering

Scattering

Random lasers

Photons

Spectroscopy

Refractive index

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