期刊
CHINESE OPTICS LETTERS
卷 20, 期 3, 页码 -出版社
CHINESE LASER PRESS
DOI: 10.3788/COL202220.031408
关键词
rare gas laser; pulsed discharge; plasma application
类别
This study investigates the volume scalability of high-density metastable argon atoms using a segmented discharge configuration. By connecting two discharge zones in parallel and charging them with thin wires and peaking capacitors, a uniform and dense plasma was achieved. The results demonstrate the feasibility of using segmented discharge for the development of optically pumped rare gas lasers.
Direct current pulsed discharge is a promising route for producing high-density metastable particles required for optically pumped rare gas lasers (OPRGLs). Such metastable densities are easily realized in small discharge volumes at near atmospheric pressures, but problems appear when one is trying to achieve a large volume of plasma for high-power output. In this work, we examined the volume scalability of high-density metastable argon atoms by segmented discharge configuration. Two discharge zones attached with peaking capacitors were connected parallelly by thin wires, through which the peaking capacitors were charged and of which the inductance functioned as ballasting impendence to prevent discharging in only one zone. A uniform and dense plasma with the peak value of the number densities of Ar (1s(5)) on the order of 10(13) cm(-3) was readily achieved. The results demonstrated the feasibility of using segmented discharge for OPRGL development.
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