双脉冲激光诱导土壤中Pb和Ba光谱增强研究

邓承付; 邱荣; 王慧丽; 郭德成; 周强; 史晋芳; 叶成; 林小明; 吕罗庚; 王昶沣

doi:10.11884/HPLPB201931.180364

双脉冲激光诱导土壤中Pb和Ba光谱增强研究

doi: 10.11884/HPLPB201931.180364

邓承付^{1, 2,},
邱荣^{1, 2, ,},
王慧丽^{1, 2},
郭德成^{1, 2},
周强^{1, 2},
史晋芳^{1, 3},
叶成^{1, 2},
林小明^{1, 2},
吕罗庚^{1, 3},
王昶沣^{1, 2}

1.
西南科技大学极端条件物质特性联合实验室, 四川绵阳 621010
2.
西南科技大学理学院, 四川绵阳 621010
3.
西南科技大学制造学院, 四川绵阳 621010

基金项目:

国家自然科学基金委员会与中国工程物理研究院联合基金项目 U1530109

详细信息

作者简介:
邓承付(1992—)，男，硕士研究生，从事激光诱导击穿光谱检测研究; 363668086@qq.com

通讯作者:
邱荣(1978—)，男，博士，副教授，从事强激光与物质相互作用研究; qiurong@swust.edu.cn

中图分类号: O433.2;O433.4
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- 被引次数: 0
出版历程
- 收稿日期: 2018-12-17
- 修回日期: 2019-01-14
- 刊出日期: 2019-01-15

Spectral enhancement of Pb and Ba in soil induced by dual-pulse laser

Deng Chengfu^{1, 2
,},
Qiu Rong^{1, 2
, ,},
Wang Huili^{1, 2},
Guo Decheng^{1, 2},
Zhou Qiang^{1, 2},
Shi Jinfang^{1, 3},
Ye Cheng^{1, 2},
Lin Xiaoming^{1, 2},
Lü Luogeng^{1, 3},
Wang Changfeng^{1, 2}

1.
Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
2.
School of Science, Southwest University of Science and Technology, Mianyang 621010, China
3.
School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

摘要

摘要: 为获得共线双脉冲激发方式对土壤中Pb和Ba元素的谱线增强效果，研究了1064 nm单脉冲和(355 nm+ 1064 nm)，(1064 nm+355 nm)共线双脉冲三种激发方式下，谱线强度随采集延迟时间的变化规律和谱线增强倍数随双脉冲时间间隔的变化规律。研究发现，与单脉冲激发方式相比，在双脉冲激发方式下，谱线Pb I 405.78 nm和Ba I 553.55 nm强度的最大增强倍数分别为5和8。该研究结果为检测土壤中重金属元素提供了参考。
- 光谱学 /
- 激光诱导击穿光谱 /
- 共线双脉冲 /
- 土壤
Abstract: In order to explore the enhancement effect of collinear dual-pulse excitation on the spectral intensity of Pb and Ba elements in soil, the variations of spectral intensity with the acquisition delay time and spectral enhancement times with the time interval of dual-pulses under the three excitation modes of 1064 nm single pulse, (355 nm+1064 nm) and (1064 nm+355 nm) collinear dual-pulses were studied. The results show that, compared to a single 1064 nm pulse, maximum enhancements by times of 5 for the Pb I 405.78 nm and 8 for the Ba I 553.55 nm were observed under the mode of dual-pulses. The results provide a reference for the detection of heavy metals in soil.
- spectroscopy /
- laser-induced breakdown spectroscopy /
- collinear dual-pulse /
- soil

HTML全文

图 1 双脉冲实验系统图

Figure 1. Diagram of dual-pulse experimental system

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图 2 单脉冲激发方式和双脉冲激发方式下的光谱曲线

Figure 2. Spectral curve under the excitation modes of single-pulse and dual-pulse

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图 3 谱线强度随采集延迟时间的变化关系

Figure 3. Variation of spectral intensity with acquisition delay time

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图 4 谱线增强倍数随双脉冲时间间隔的变化关系

Figure 4. Variations of spectral enhancement times with time interval of dual pulse

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参考文献(14)

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