Investigation of the dynamics of formation of excited atoms, ions, and excimer molecules in the plasma of an electric-discharge XeCl laser

Journal Article · Sun Dec 01 04:00:00 EST 1985 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1985v015n12ABEH008073· OSTI ID:6113558

Peet, V E; Treshchalov, A B

The plasma of an electric-discharge XeCl laser was investigated by the method of absorption probing with tunable dye laser pulses. The duration of a probe pulse was 7 nsec and the half-width of the laser line was 15 pm. A synchronization system made it possible to shift the probe pulse on the time scale relative to the discharge and this could be done with an accuracy of 3 nsec. The absorption spectra were determined in the range 335--610 nm for a mixture of the composition He:Xe:HCl = 550:8:1 at a pressure of p = 2.2 atm. The time dependences of the absolute concentrations of Xe*, He*, Xe/sup +/*, and Cl/sup -/ were obtained. The dynamics of population of excited atoms and ions was analyzed. Amplification of a small signal was used to determine the time dependence of the absolute concentration of XeCl* excimer molecules. It was found that during the initial stage of the discharge the dominant XeCl* formation channel was a harpoon reaction, whereas during later stages the ion--ion recombination process predominated.

• Research Organization: Institute of Physics, Academy of Sciences of the Estonian SSR, Tartu
• OSTI ID: 6113558
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 15:12; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION SPECTRA
ELECTRIC DISCHARGES
ENERGY-LEVEL TRANSITIONS
EXCIMER LASERS
EXCITATION
GAS LASERS
KINETICS
LASERS
POPULATION INVERSION
RARE GAS COMPOUNDS
SPECTRA