Beam-propagation numerical studies in three-level absorbers: nontrivial induced lenses and their spectral manifestations

Vladimir L. Derbov; Inna L. Plastun

doi:10.1117/12.175144

3 May 1994 Beam-propagation numerical studies in three-level absorbers: nontrivial induced lenses and their spectral manifestations

Vladimir L. Derbov, Inna L. Plastun

Author Affiliations +

Proceedings Volume 2098, Computer Simulation in Nonlinear Optics; (1994) https://doi.org/10.1117/12.175144
Event: Volga Laser Tour '93, 1993, Moscow, Russian Federation

Abstract

The numerical simulations of two coaxial laser beams, pump and probe, propagating in a three-level absorber are presented. The fixed-pump beam frequency and the variable-probe beam frequency are near-resonant to the adjacent transitions. Depending on the ratio of the population relaxation rates, either absorption or amplification of the probe field may occur, both demonstrating symmetric Rabi-splitted spectra of the absorption coefficient if the on-resonance pump intensity is high enough. In contrary to this, the spectra of the probe beam transmitted intensity are shown to be asymmetric due to the frequency-sensitive saturated refraction induced by the pump beam. The competition of level population changes and Rabi splitting is shown to cause the nontrivial induced lenses responsible for the complicated dependence of spectral asymmetry upon the pump intensity.

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Vladimir L. Derbov and Inna L. Plastun "Beam-propagation numerical studies in three-level absorbers: nontrivial induced lenses and their spectral manifestations", Proc. SPIE 2098, Computer Simulation in Nonlinear Optics, (3 May 1994); https://doi.org/10.1117/12.175144

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