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

作　　者：江超[1] 王又青[2] 

机构地区：[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

出　　处：《量子电子学报》2007年第1期48-53,共6页Chinese Journal of Quantum Electronics

基　　金：Scientific Researeh Foundation of Edueation Department of Hubei Province(D20062702);Scientific Researeh Foundation of Huangshi City(2005[37])

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。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 2.7×10^13cm^-3 in the discharge plasmas. The high-pressure, large-volume, high electron density plasmas can be used as the media of mini-laser.

关 键 词：激光技术 微空心阴极自持的辉光放电 放电特性 等离子体参数 

分 类 号：TN248.2[电子电信—物理电子学]