УДК: 535.34

Measurement of the concentration of water vapor in a glow discharge plasma

Lagunov, V.V., Nikolaev, I.V., Ochkin, V.N., Tskhai, S.N.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Лагунов В.В., Николаев И.В., Очкин В.Н., Цхай С.Н. Измерение концентрации водяных паров в плазме тлеющего разряда // Оптический журнал. 2017. Т. 84. № 6. С. 66–70.

Lagunov V.V., Nikolaev I.V., Ochkin V.N., Tskhai S.N. Measurement of the concentration of water vapor in a glow discharge plasma [in Russian] // Opticheskii Zhurnal. 2017. V. 84. № 6. P. 66–70.

For citation (Journal of Optical Technology):

V. V. Lagunov, I. V. Nikolaev, V. N. Ochkin, and S. N. Tskhaĭ, "Measurement of the concentration of water vapor in a glow discharge plasma," Journal of Optical Technology. 84(6), 415-418 (2017). https://doi.org/10.1364/JOT.84.000415

Abstract:

The absorption of water molecules in glow discharge plasma in moist inert gases with reduced pressure is studied by diode laser spectroscopy. A non-axial scheme with an external resonator is used, which allows the determination of kinetic temperature from Doppler broadening in order to obtain the partition function of water molecules, required for estimating the concentration of particles under non-equilibrium conditions.

Keywords:

absorption spectroscopy, diode laser, external resonator, gas discharge

OCIS codes: 300.0300, 300.01030, 300.6260

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