Laser-induced discharge characteristics in low vacuum with residual helium gas and air

Naoki Hayakawa, Masayuki Hikita, Hitoshi Okubo, S. Yuasa, K. Ota

doi:10.1109/deiv.1996.545451

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Laser-induced discharge characteristics in low vacuum with residual helium gas and air

DOI

Naoki Hayakawa
Masayuki Hikita
Hitoshi Okubo
S. Yuasa
K. Ota

説明

This paper describes the fundamental characteristics of TEA-CO/sub 2/ laser-induced plasma in low vacuum. Experimental results revealed that there existed a threshold pressure for the laser-induced plasma production in He gas and air in low vacuum. The pressure dependence of shape and intensity of plasma was observed and discussed. Laser-triggered breakdown characteristics under uniform field were also measured in atmospheric air.