Time Variation of Internal Plasma Parameters in Microwave-Pulse-Excited He-Kr^+ Ion Laser

概要

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The electron density and the electron temperature have been measured as functions of time in an early afterglow plasma in order to clarify the mechanism of a microwave-pulse-excited He-Kr^+ ion laser which oscillates in the afterglow. It is observed, after about 2 μsec from the termination of the discharge, that the decay rate of the electron density decreases and the electron temperature becomes constant (1〜1.5 X 10^4 K), because Kr atoms are ionized by He metastable atoms.Based on the results obtained, the time variation of the He metastab le atom density has been estimated, and it shows that after about 2 μsec the He metastable atom density monotonically decreases and has no peak.
社団法人応用物理学会の論文
1977-04-05