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 atmos-pheric 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[1s5]on the order of 1013 cm-3 was readily achieved.The results demonstrated the feasibility of using segmented discharge for OPRGL development.

Zhifan Zhang;Peng Lei;Duluo Zuo;Xinbing Wang

Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China

中国光学快报（英文版）

[1]Zhifan Zhang;Peng Lei;Duluo Zuo;Xinbing Wang-.Segmented pulsed discharge for metastable argon lasing medium)[J].中国光学快报（英文版）,2022(03):66-71

OPRGLs,pheric,ballasting,impendence,1s5,OPRGL

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