Lasers

Mathematical simulation of the amplification of 1790-nm laser radiation in a nuclear-excited He – Ar plasma containing nanoclusters of uranium compounds

V. A. Kosarev, E. È. Kuznetsova

Institute for Physics and Power Engineering named after A. I. Leypunsky, Obninsk, Kaluga region

Abstract: The possibility of applying dusty active media in nuclearpumped lasers has been considered. The amplification of 1790-nm radiation in a nuclear-excited dusty He – Ar plasma is studied by mathematical simulation. The influence of nanoclusters on the component composition of the medium and the kinetics of the processes occurring in it is analysed using a specially developed kinetic model, including 72 components and more than 400 reactions. An analysis of the results indicates that amplification can in principle be implemented in an active laser He – Ar medium containing 10-nm nanoclusters of metallic uranium and uranium dioxide.

Keywords: nanoclusters, nuclear-excited plasma, kinetic processes, fission fragments, laser radiation.

PACS: 42.55.Lt, 52.38.-r, 25.55.-e

Received: 17.09.2013
Revised: 25.12.2013

 English version: Quantum Electronics, 2014, 44:2, 157–160

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