激光诱导氯化铜溶液等离子体特征参数的研究  

Analysis of the Characteristic Parameters of CuCl2 Aqueous Solution Plasma using LIBS

作　　者：罗文峰[1] 郑晓敏[2] 朱海燕[1] 李冬冬[1] 

机构地区：[1]西安邮电大学电子工程学院,陕西西安710121 [2]安阳市第一职业中等专业学校,河南安阳455000

出　　处：《激光与光电子学进展》2012年第12期114-118,共5页Laser & Optoelectronics Progress

基　　金：国家自然科学基金青年科学基金(61108061);西安邮电大学中青年教师科研基金重点项目资助课题

摘　　要：称取32.4mg氯化铜粉末,配制出质量分数为1.62×10-4的CuCl2溶液。将1064nm Nd…YAG激光聚焦到溶液表面,产生高亮度的等离子体光斑。实验测得等离子体的电子温度为1850K,电子密度为5.8×1016 cm-3。实验证实激光诱导产生的CuCl2溶液等离子体满足局部热力学平衡状态。Using 32. 4 mg CuCI2 powder, the CuCl2 aqueous solution with the concentration of 1. 62 ×10 ^-4 is prepared. The CuCl2 aqueous solution plasma is produced by focusing the 1064 nm Q-switched Nd： YAG laser onto it. The plasma temperature of 1850 K is inferred using Boltzmann plot method, while the electron density of 5.8 × 10^16 cm^- 3 is obtained from the Stark broadening of the profile of Ha 656. 273 nm. Based on experimental results, the laser-induced CuCl2 aqueous solution plasma is verified to be in local thermodynamic equilibrium.

关 键 词：激光技术 激光诱导击穿光谱 原子发射光谱 等离子体 电子温度 电子密度 

分 类 号：TN249[电子电信—物理电子学]