量子电子学报, 2007, 24 (1): 0048, 网络出版: 2010-06-07  

一种用于小型激光器的新颖放电结构的放电性质研究

Discharge characteristics of a novel discharge configuration for mini-laser
江超 1,2,*王又青 2
作者单位
1 湖北师范学院生化分析技术湖北省重点实验室,湖北 黄石 435002
2 华中科技大学激光技术国家重点实验室,湖北 武汉 430074
摘要
依据微空心阴极自持的辉光放电结构,设计了一款新颖的微小放电结构。用空气进行了有关的放电实验,稳定的直流辉光放电,放电气压最大能够达到66.7 kPa。放电的伏安特性具有正的斜坡,放电能够稳定地运行,而不需要个体镇流电阻。在气压为40 kPa和放电电流为60 mA时,放电等离子体中的电流密度估计为0.048 A/cm2,功率密度估计为52.8 W/cm3,电子密度估计为2.7×1013cm-3。实验结果表明:这种高气压、大体积、高电子密度的放电等离子体能够用作小型激光器的工作介质。
Abstract
A novel mini-device was designed on the base of the configuration of micro-hollow cathode sustained glow discharge(MCSD). The discharge experiment was carried out with air,and the stable direct-current glow discharge was formed at pressure up to 66.7 kPa. The voltage-current characteristics showed a positive slope,and the discharges can operate stably without individual ballasting resistors. The estimated current density is 0.048 A/cm2,and the estimated power density is 52.8 W/cm3 at 40 kPa and 60 mA. The estimated electron density is 2.7×1013cm-3 in the discharge plasmas. The high-pressure,large-volume,high electron density plasmas can be used as the media of mini-laser.
参考文献

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江超, 王又青. 一种用于小型激光器的新颖放电结构的放电性质研究[J]. 量子电子学报, 2007, 24(1): 0048. JIANG Chao, WANG You-qing. Discharge characteristics of a novel discharge configuration for mini-laser[J]. Chinese Journal of Quantum Electronics, 2007, 24(1): 0048.

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