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This article is cited in 8 scientific papers (total in 8 papers)
Lasers
Excitation and relaxation of metastable atomic states in an active medium of a repetitively pulsed copper vapour laser
P. A. Bokhana, Dm. E. Zakrevskiia, M. A. Lavrukhina, N. A. Lyabinb, A. D. Chursinb a Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
b State Scientific-Production Enterprise "Istok", Fryazino, Moskovskaya obl.
Abstract:
The influence of a pre-pulse population of copper atom metastable states and their sub-population at a current pulse edge on the copper vapour laser pulse energy is studied under optimal temperature conditions. Experiments have been performed with active elements of a commercial laser having an internal diameter of a discharge channel of 14 and 20 mm. It is found that at a pulse repetition frequency of 12–14 kHz, corresponding to a maximal output power, the reduction of the energy due to a residual population of metastable states is by an order of magnitude less than due to their sub-population at a current pulse edge. The modelling based on the experimental results obtained has shown that in the case of an active element with an internal diameter of 14 mm, a decrease in the pulse leading edge from ∼25 ns to 0.6 ns does not reduce the laser pulse energy up to the repetition frequency of ∼50 kHz at an average output power of 70 W m-1 and efficiency of ∼11%.
Keywords:
copper vapour laser, lasing, lasing efficiency, pre-pulse electron concentration, pre-pulse concentration of metastable levels.
Received: 30.12.2014 Revised: 17.02.2015
Citation:
P. A. Bokhan, Dm. E. Zakrevskii, M. A. Lavrukhin, N. A. Lyabin, A. D. Chursin, “Excitation and relaxation of metastable atomic states in an active medium of a repetitively pulsed copper vapour laser”, Kvantovaya Elektronika, 46:2 (2016), 100–105 [Quantum Electron., 46:2 (2016), 100–105]
Linking options:
https://www.mathnet.ru/eng/qe16320 https://www.mathnet.ru/eng/qe/v46/i2/p100
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Abstract page: | 232 | Full-text PDF : | 79 | References: | 59 | First page: | 44 |
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