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样品温度对纳秒激光诱导铝等离子体光谱强度的影响

Influence of Sample Temperature on Spectral Intensity of Nanosecond Laser-Induced Aluminum Plasma

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摘要

使用纳秒激光激发铝箔产生等离子体,对铝箔进行加热,研究样品温度对激光诱导击穿光谱强度和信噪比的影响;对烧蚀坑的直径进行测量,观察烧蚀坑直径随温度的变化。结果表明:铝的两条谱线强度和信噪比均随温度升高而增大,烧蚀坑尺寸也随温度升高而增大。证实了加热样品可以提高激光诱导击穿光谱的灵敏度。

Abstract

A nanosecond laser is used to excite the aluminum foil to generate plasma. The aluminum foil is heated and the influences of sample temperature on the intensity and the signal-to-noise ratio of laser-induced breakdown spectroscopy are investigated. The diameter of ablation crater is measured, and the relaionship between the crater diameter and the sample temperature is observed. The research results show that the increase in sample temperature leads to the increase in the spectral intensity and the signal-to-noise ratio of two spectral lines of aluminum, the crater diameter also increases with the increase of sample temperature. It is validated that increasing the sample temperature can improve the sensitivity of the laser-induced breakdown spectroscopy.

Newport宣传-MKS新实验室计划
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中图分类号:O657.3

DOI:10.3788/cjl201946.0211002

所属栏目:光谱学

基金项目:国家自然科学基金(11674128,11674124,11504129)、吉林省科技发展计划(20170101063JC)、吉林省教育厅“十三五”科学研究规划项目(2016[400])

收稿日期:2018-08-21

修改稿日期:2018-09-15

网络出版日期:2018-10-24

作者单位    点击查看

齐洪霞:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012
赵亮:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012
金川琳:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012
何郡桐:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012
陈安民:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012
金明星:吉林大学原子与分子物理研究所, 吉林 长春 130012吉林省应用原子分子光谱重点实验室, 吉林 长春130012

联系人作者:陈安民(amchen@jlu.edu.cn); 金明星(mxjin@jlu.edu.cn);

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引用该论文

Qi Hongxia,Zhao Liang,Jin Chuanlin,He Juntong,Chen Anmin,Jin Mingxing. Influence of Sample Temperature on Spectral Intensity of Nanosecond Laser-Induced Aluminum Plasma[J]. Chinese Journal of Lasers, 2019, 46(2): 0211002

齐洪霞,赵亮,金川琳,何郡桐,陈安民,金明星. 样品温度对纳秒激光诱导铝等离子体光谱强度的影响[J]. 中国激光, 2019, 46(2): 0211002

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