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Proceedings Paper

Laser-induced collective interactions under propagation of polychromatic radiation pulse through resonant optically dense extended medium without population inversion
Author(s): Sergei N. Bagayev; V. S. Egorov; I. B. Mekhov; P. V. Moroshkin; A. N. Fedorov; I. A. Chekhonin; E. M. Davliatchine; E. Kindel
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Paper Abstract

Experimental and theoretical investigation of the coherent propagation and amplification of polychromatic broadband laser pulses in optically dense resonant media without population inversion was carried out for the cases of plasma in a Ne glow discharge and a pulse discharge in Hg-Ar mixture. High density of Ne and Hg atoms in the metastable state (about 1012 cm-3), which was chosen to be the ground state of the two-level system under consideration, leads to the collective behavior of the atomic system in resonant electromagnetic field. The broadband probe field attenuation and the sideband amplification of the probe under the action of the coherent pump were observed. The amplification dependence on the pump intensity was obtained. The model of the parametrically enhanced collective interactions was developed and comparison the experimental data was made.

Paper Details

Date Published: 29 May 2002
PDF: 11 pages
Proc. SPIE 4748, ICONO 2001: Fundamental Aspects of Laser-Matter Interaction and Physics of Nanostructures, (29 May 2002); doi: 10.1117/12.468974
Show Author Affiliations
Sergei N. Bagayev, Institute of Laser Physics (Russia)
V. S. Egorov, St. Petersburg State Univ. (Russia)
I. B. Mekhov, St. Petersburg State Univ. (Russia)
P. V. Moroshkin, St. Petersburg State Univ. (Russia)
A. N. Fedorov, St. Petersburg State Univ. (Russia)
I. A. Chekhonin, St. Petersburg State Univ. (Russia)
E. M. Davliatchine, Institute of Low-Temperature Plasma Physics (Germany)
E. Kindel, Institute of Low-Temperature Plasma Physics (Russia)


Published in SPIE Proceedings Vol. 4748:
ICONO 2001: Fundamental Aspects of Laser-Matter Interaction and Physics of Nanostructures

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