23 August 1995 Problems of the inversion population mechanism and the generation threshold for a Eu-ion laser
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Proceedings Volume 2619, International Conference on Atomic and Molecular Pulsed Laser; (1995) https://doi.org/10.1117/12.216893
Event: Second Conference on Pulsed Lasers: Pulsed Atomic and Molecular Transitions, 1995, Tomsk, Russian Federation
Abstract
This paper is devoted to studying the mechanism of super-fast relaxation of first Eu ion metastable states in discharge plasma in Eu-vapor-inert gas mixture. The threshold pressure of Ne for starting the first Eu ion quasi-continuous lasing at (lambda) equals1,0019 micrometers has been determined using two methods. Ratio of decay constants for de-excitation of Eu ion metastable state for He-Eu and Ne-Eu mixtures, which was close to the value (M+/-Ne)/ M+/-He))3/2 is congruent to 11 has been determined also. The obtained results show that relaxation of Eu+7D+/-j)0metastable states goes either during formation of(EuX)+* quasi molecule or during the recombination process. Structure of lower terms of the first Eu ion presented has two systems of 7 and 9 multiplet levels. Each system consists of the ground state and of resonance and metastable state groups. This system of levels corresponds to the agreed upon three-levels scheme of self-termination transition lasers.
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Vladimir M. Klimkin, Vladimir M. Klimkin, Vladimir Egorovich Prokop'ev, Vladimir Egorovich Prokop'ev, Vladimir G. Sokovikov, Vladimir G. Sokovikov, } "Problems of the inversion population mechanism and the generation threshold for a Eu-ion laser", Proc. SPIE 2619, International Conference on Atomic and Molecular Pulsed Laser, (23 August 1995); doi: 10.1117/12.216893; https://doi.org/10.1117/12.216893
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