Chaotic behavior of a random laser with static disorder

Year: 2007

Authors: Mujumdar S., Turck V., Torre R., Wiersma D.

Autors Affiliation: Univ Florence, INFM, BEC, European Lab Nonlinear Spect, Sesto Fiorentino, Italy;
Univ Florence, Dept Phys, Sesto Fiorentino, Italy

Abstract: We report on an experimental and numerical study of chaotic behavior in random lasers. The complex emission spectra from a disordered amplifying material with static disorder are investigated in a configuration with controlled, stable experimental conditions. It is found that, upon repeated identical excitation, the emission spectra are distinct and uncorrelated. This behavior can be understood in terms of strongly coupled modes that are triggered by spontaneous emission, and is expected to play an important role in most pulsed random lasers.

Journal/Review: PHYSICAL REVIEW A

Volume: 76 (3)      Pages from: 033807-1  to: 033807-6

KeyWords: Chaos theory; Emission spectroscopy; Random processes; Spontaneous emission; Static analysis, Complex emission spectra; Pulsed random lasers; Static disorder, Laser beam effects
DOI: 10.1103/PhysRevA.76.033807

Citations: 122
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