空气中飞秒激光预电离辅助纳秒激光诱导击穿:对空间分辨率和连续辐射的影响

IF 0.9 4区物理与天体物理 Q4 PHYSICS, APPLIED

European Physical Journal-applied Physics Pub Date : 2020-11-01 DOI:10.1051/epjap/2020200258

Bo Li, Xiaofeng Li, Zhu Zhifeng, Q. Gao

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引用次数: 1

摘要

激光诱导击穿光谱(LIBS)是一种强有力的气体定量诊断技术。然而，LIBS的空间分辨率受到等离子体体积的限制。这里展示了飞-纳-秒双脉冲LIBS。采用该方法，击穿阈值降低80%，缩短了连续辐射的衰减时间。此外，等离子体体积缩小了85%，因此，LIBS的空间分辨率显着提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

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来源期刊

European Physical Journal-applied Physics 物理-物理：应用

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

1.9 months

期刊介绍： EPJ AP an international journal devoted to the promotion of the recent progresses in all fields of applied physics. The articles published in EPJ AP span the whole spectrum of applied physics research.