Kinetic study of a cw optically pumped laser with metastable rare gas atoms produced in an electric discharge

Dem'yanov, A.V.; Кочетов, И. В.; Mikheyev, P. A.

doi:10.1088/0022-3727/46/37/375202

Cited by 60 publications

(33 citation statements)

References 14 publications

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“…Note, however, that there is radiative branching to the 1s 4 level (≈20% of the spontaneous decay). In order to adequately understand these lasers, the rate constants for collisional energy transfer of population between the 2p i levels and the rate constants for 1s 4 -1s 5 transfer need to be determined.To date, the Ar He laser system has been examined in the most detail [8][9][10][11], and the focus of the present study is on the Ar Ar and Ar He energy transfer rate constants. The Ar2p i Ar kinetics have been examined at low pressures (<8 Torr) in two previous studies [12,13], and the Ar1s 4 Ar relaxation rate constant has also been determined [14].…”

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confidence: 99%

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Kinetics of optically pumped Ar metastables

Han

Heaven

2014

Opt. Lett.

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Optically pumped lasers that use metastable excited states of Ar have been demonstrated using both pulsed and CW excitation. In terms of Paschen labeling of the states of Ar, the laser system uses excitation of the 2p9-1s5 transition, and lases on the 2p10-1s5 line. Collisional transfer of population from 2p9 to 2p10 is achieved using He as the buffer gas. For the purpose of modeling and developing this laser, rate constants for state-to-state transfer in Ar(2p(i))+Ar/He mixtures are needed. As the 2p10 level can radiate down to 1s4, this lower level also plays a significant role in the laser kinetics. Consequently, rate constants for the relaxation of 1s4 by Ar and He are also required. In the present study we have used pulsed laser excitation techniques to measure rate constants of relevance to the optically pumped metastable Ar laser.

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confidence: 99%

“…To date, the Ar He laser system has been examined in the most detail [8][9][10][11], and the focus of the present study is on the Ar Ar and Ar He energy transfer rate constants. The Ar2p i Ar kinetics have been examined at low pressures (<8 Torr) in two previous studies [12,13], and the Ar1s 4 Ar relaxation rate constant has also been determined [14].…”

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confidence: 99%

Kinetics of optically pumped Ar metastables

Han

Heaven

2014

Opt. Lett.

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“…Present interest in spectral characteristics of certain rare gas absorption and emission lines is due to the recently proposed optically pumped all-rare-gas laser (OPRGL) [1] with unique properties [2] comparable to a diode pumped alkali laser (DPAL) [3]. In OPRGL rare gas atoms excited to the lowest (nþ1)s[3/2] 2 (1s 5 in Paschen notation) metastable state act like ground state alkali atoms in DPAL providing the lower laser level.…”

Section: Introductionmentioning

confidence: 99%

Pressure broadening of Ar and Kr (n+1)s[3/2]2→(n+1)p[5/2]3 transition in the parent gases and in He

Mikheyev

Чернышов

Ufimtsev

et al. 2015

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…Due to the observation of much shorter laser pulse duration than the discharge pulse duration, kinetics of OPRGLs that mainly focused on the influence of an intermediate 1s 4 state have been studied [14]. Demyanov et al have theoretically modeled the OPRGLs by considering the required discharge power [15].…”

Section: Introductionmentioning

confidence: 99%

Modeling of diode pumped metastable rare gas lasers

Yang¹,

Yu²,

Wang³

et al. 2015

Opt. Express

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As a new kind of optically pumped gaseous lasers, diode pumped metastable rare gas lasers (OPRGLs) show potential in high power operation. In this paper, a multi-level rate equation based model of OPRGL is established. A qualitative agreement between simulation and Rawlins et al.'s experimental result shows the validity of the model. The key parameters' influences and energy distribution characteristics are theoretically studied, which is useful for the optimized design of high efficient OPRGLs.

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Kinetic study of a cw optically pumped laser with metastable rare gas atoms produced in an electric discharge

Cited by 60 publications

References 14 publications

Kinetics of optically pumped Ar metastables

Kinetics of optically pumped Ar metastables

Pressure broadening of Ar and Kr (n+1)s[3/2]2→(n+1)p[5/2]3 transition in the parent gases and in He

Modeling of diode pumped metastable rare gas lasers

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