Investigations on the collisional He+Eu II laser with longitudinal gas discharge excitation at pressures up to 5 atm

Peter A. Bokhan; D. E. Zakrevsky

doi:10.1117/12.160515

7 October 1993 Investigations on the collisional He + Eu II laser with longitudinal gas discharge excitation at pressures up to 5 atm

Peter A. Bokhan, D. E. Zakrevsky

Author Affiliations +

Proceedings Volume 2110, CIS Selected Papers: Metal Vapor Lasers and Their Applications; (1993) https://doi.org/10.1117/12.160515
Event: Metal Vapor Lasers and Their Applications: CIS Selected Papers, 1993, None, Russian Federation

Abstract

This paper presents the results of the experimental investigations of gas-discharge laser using ionized europium vapors at high pressures of the active medium (from 1 to 5 atm) in a tube 15 cm long and 2.7 cm in diameter. Metal vapor, as a low-ionized component of vapor-gas mixtures, was shown to provide the functioning of powerful longitudinal homogeneous pulse periodic gas discharge throughout the entire buffer gas pressures range under study. At pumping by such a discharge the lasing with (lambda) equals 1001.9 nm in He-Eu II laser exists up to about 5 atm of the mixture pressure, and the lasing power as well as laser efficiency grow up to at least 3.5 atm. At 3.5 atm the power of quasicontinuous lasing achieved was 165 W(DOT)cm^-3 in comparison with 40 W(DOT)cm^-3 at atmospheric pressure. On the basis of the performed investigations and previous results obtained on the pumping of atmospheric pressure laser by the beams of runaway electrons with an energy of 5 to 6 keV, the conclusion was made about the promising future of pumping of this media by powerful electron and proton beams, and nuclear reactions products with probable achievement of the specific lasing energy W approximately equals 1 J(DOT)cm^-3.

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Peter A. Bokhan and D. E. Zakrevsky "Investigations on the collisional He + Eu II laser with longitudinal gas discharge excitation at pressures up to 5 atm", Proc. SPIE 2110, CIS Selected Papers: Metal Vapor Lasers and Their Applications, (7 October 1993); https://doi.org/10.1117/12.160515

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