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1. 中国科学院大学 北京,100049
2. 中国科学院长春光学精密机械与物理研究所 激光与物质相互作用国家重点实验室,吉林 长春,130033
纸质出版日期:2015-9-3,
收稿日期:2015-5-12,
修回日期:2015-6-27,
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王旭, 谢冀江, 潘其坤等. 非链式脉冲氟化氘激光器的放电特性[J]. 发光学报, 2015,36(9): 1041-1046
WANG Xu, XIE Ji-jiang, PAN Qi-kun etc. Discharge Characteristic of Non-chain Pulsed Deuterium Fluoride Lasers[J]. Chinese Journal of Luminescence, 2015,36(9): 1041-1046
王旭, 谢冀江, 潘其坤等. 非链式脉冲氟化氘激光器的放电特性[J]. 发光学报, 2015,36(9): 1041-1046 DOI: 10.3788/fgxb20153609.1041.
WANG Xu, XIE Ji-jiang, PAN Qi-kun etc. Discharge Characteristic of Non-chain Pulsed Deuterium Fluoride Lasers[J]. Chinese Journal of Luminescence, 2015,36(9): 1041-1046 DOI: 10.3788/fgxb20153609.1041.
为了提升非链式DF激光器输出能量与电光转换效率
使用有限元分析法
分别计算了Chang氏电极和粗糙阴极与光滑阳极组成的平板电极间的静电场分布。对于Chang氏电极
引入了火花针尖端强电场
计算了火花针紫外预电离放电的电场分布。对于平板电极
计算了阴极表面毛刺尖端的静电场分布
发现毛刺会在阴极表面形成一系列较高强度的电场区域而不会导致平板电极间电场均匀性恶化。进而对两种电极进行了脉冲放电实验
获得了非链式脉冲DF激光器的放电特性和输出参数。实验结果表明:均匀电场分布有利于提高非链式脉冲DF激光器的输出能量;自引发DF激光器阴极毛刺尖端强电场有利于实现体放电;自引发放电更适用于大体积均匀放电。
In order to enhance the non-chain DF laser output energy and electro-optic conversion efficiency
the electrostatic field distribution of Chang electrode and flat electrode which was consisted by rough cathode and smooth anode was calculated by finite element method. For Chang electrode
the higher electric field of spark-pin was introduced
and the electrostatic field distribution of spark-pin UV pre-ionization was calculated. For the flat electrode
the electrostatic field distribution of burr on the cathode surface was calculated. The burrs on the cathode surface can form a series of higher electric field
but cant lead to uniformity of plate electrode field deteriorating. And then
pulsed discharge experiments were carried out on two kinds of electrodes
so discharging performance and output characteristics of non-chain pulsed DF laser were obtained. The discharge experiment results show that the uniform electric field is conducive to increase the output energy of non-chain pulsed DF laser. It is also verified that the higher electric field of the burrs on the cathode of self-initiated discharge DF laser is benefit to volume discharge. Besides
the self-initiated discharge is more applicable for large volume discharge.
激光器电场分析有限元仿真输出特性
laserselectric field analysisfinite element simulationoutput characteristic
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