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Proceedings Paper

Amplification without inversion in transversely limited beams
Author(s): Vladimir L. Derbov; Inna L. Plastun
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Paper Abstract

Propagation of a weak probe optical beam through a three-level medium pumped with a microwave strong beam is numerically studied. P-scheme of transitions under the conditions providing the amplification of the probe field without inversion is taken to calculate the atomic polarization which enters the paraxial wave equations. Diffraction and self-action of beams due to nonlinear absorption and refraction are properly taken into account. These effects together with linear absorption and refraction form a complex distribution of gain across the beams. As a result the amplified beam acquires ring transverse patterns and slight asymmetry in the frequency characteristics.

Paper Details

Date Published: 10 May 1996
PDF: 9 pages
Proc. SPIE 2798, Coherent Phenomena and Amplification without Inversion, (10 May 1996); doi: 10.1117/12.239491
Show Author Affiliations
Vladimir L. Derbov, Saratov State Univ. (Russia)
Inna L. Plastun, Saratov State Univ. (Russia)


Published in SPIE Proceedings Vol. 2798:
Coherent Phenomena and Amplification without Inversion
A. L. Andreev; Olga A. Kocharovskaya; Paul Mandel, Editor(s)

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