A quasi-CW nuclear-pumped laser based on atomic transitions in argon
Abstract
A high-pressure IR laser based on 3d-4p transitions in Ar atom was produced by excitation of He-Ar and Ne-Ar mixtures by uranium fission fragments, and its characteristics were investigated. Results are presented on the effects of the nature of the buffer gas and of the gas-mixture ratio on the energy, the threshold, and the spectral characteristics of laser radiation. It was found that maximal radiation power of 390 W with the efficiency of 0.6 percent could be obtained for the mixture He:Ar = 500:1 at 2 atm. Minimal lasing threshold lasing was achieved for this gas mixture at a neutron flux density of 9 x 10 to the 13th/sq cm per sec at 1 atm.
- Publication:
-
Kvantovaia Elektronika Moscow
- Pub Date:
- February 1991
- Bibcode:
- 1991KvanE..18..177V
- Keywords:
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- Argon;
- Atomic Energy Levels;
- Continuous Wave Lasers;
- Infrared Lasers;
- Nuclear Pumped Lasers;
- Transition Probabilities;
- Helium Atoms;
- Laser Outputs;
- Neutron Flux Density;
- Lasers and Masers