Investigation of electrooptical breakdown threshold in gas mixtures of complex chemical composition

12th International Conference on Gas Discharge Plasmas and Their Applications

Loktionov, E.Y.^1 ; Pasechnikov, N.A.^1 ; Pavlov, A.V.^1 ; Protasov, Y.S.^1 ; Telekh, V.D.^1

State Lab for Photon Energetics, Bauman Moscow State Technical University, 5-1 2nd Baumanskaya Street, Moscow

105005, Russia^1

关键词: 1064 nm;    Breakdown threshold;    Complex chemicals;    Experimental investigations;    Subatmospheric pressures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/652/1/012043/pdf
DOI  :  10.1088/1742-6596/652/1/012043

来源: IOP

【 摘 要 】

The results of combined electrooptical breakdown (DC E∼0-13.2 kV/cm + laser λ-213, 266, 355, 532, 1064 nm, τ0,5∼18 ns, I0∼109-1011W/cm2) of gases (He, Ne, Ar, Kr) and their binary and triple mixtures at subatmospheric pressure (101-105Pa) experimental investigation are presented for the first time. Thresholds of optical, electrical and combined electrooptical breakdown for those were experimentally determined. The possibility of breakdown threshold components decrease at simultaneous optical and electrical impact on the gas, and the possibility of lowering the thresholds of the combined breakdown of doped gases have been investigated.