Optogalvanic indication of gas discharge plasma instability and optical probing of laser-light-perturbed hollow cathode discharge

Dimo Zhechev; Svetla Atanassova

doi:10.1117/12.262938

27 December 1996 Optogalvanic indication of gas discharge plasma instability and optical probing of laser-light-perturbed hollow cathode discharge

Dimo Zhechev, Svetla Atanassova

Author Affiliations +

Proceedings Volume 3052, Ninth International School on Quantum Electronics: Lasers--Physics and Applications; (1996) https://doi.org/10.1117/12.262938
Event: Ninth International School on Quantum Electronics: Lasers: Physics and Applications, 1996, Varna, Bulgaria

Abstract

The appearance of an optogalvanic response of dumping oscillating type in a hollow cathode discharge is considered. Having analyzed the transient processes in the electric circuit, including the gas discharge cell, the oscillating response is found to be connected with the negative resistance of the discharge and with other circuit elements. The results are compared with measured photoemission dynamical optogalvanic signal. An optical method for probing of light absorbing gas discharge is suggested. It is based on the light induced response of the spectral line intensity. The sputtered atoms of magnesium are taken to probe an illuminated Ar/Mg hollow cathode discharge.

Citation Download Citation

Dimo Zhechev and Svetla Atanassova "Optogalvanic indication of gas discharge plasma instability and optical probing of laser-light-perturbed hollow cathode discharge", Proc. SPIE 3052, Ninth International School on Quantum Electronics: Lasers--Physics and Applications, (27 December 1996); https://doi.org/10.1117/12.262938

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