Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 44206-044206.doi: 10.1088/1674-1056/22/4/044206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Polarization characteristics of single shot nanosecond laser induced breakdown spectroscopy of Al

刘佳, 陶海岩, 高勋, 郝作强, 林景全   

  1. Changchun University of Science and Technology, Changchun 130022, China
  • 收稿日期:2012-07-05 修回日期:2012-09-27 出版日期:2013-03-01 发布日期:2013-03-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60978014, 11074027, 61178022, 11274053, and 11211120156), the Funds from Jilin Provincial Science and Technology Department, China (Grant Nos. 20090523, 20100521, 20100168, and 20111812), and Funds from Education Department of Jilin Province.

Polarization characteristics of single shot nanosecond laser induced breakdown spectroscopy of Al

Liu Jia (刘佳), Tao Hai-Yan (陶海岩), Gao Xun (高勋), Hao Zuo-Qiang (郝作强), Lin Jing-Quan (林景全)   

  1. Changchun University of Science and Technology, Changchun 130022, China
  • Received:2012-07-05 Revised:2012-09-27 Online:2013-03-01 Published:2013-03-01
  • Contact: Lin Jing-Quan E-mail:linjingquan@cust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60978014, 11074027, 61178022, 11274053, and 11211120156), the Funds from Jilin Provincial Science and Technology Department, China (Grant Nos. 20090523, 20100521, 20100168, and 20111812), and Funds from Education Department of Jilin Province.

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摘要： Polarization-resolved laser-induced breakdown spectroscopy (PRLIBS) technique which can significantly reduce the polarized emission from laser plasma by placing a polarizer in front of the detector, is a powerful tool to improve line-to-continuum ratio in LIBS application. It is shown that the continuum emission from the plasma produced through ablating an Al sample by nanosecond laser pulses is much more polarized than the discrete line emission with single-pulse PRLIBS technique. The effects of laser fluence, and detection angle on the Al polarization spectrum are systematically explored experimentally. The calculated result of polarization spectrum as a function of laser fluence shows that it is in agreement with the experimental observations.

关键词: polarization-resolved laser-induced breakdown spectroscopy, laser plasma, S/N ratio

Abstract: Polarization-resolved laser-induced breakdown spectroscopy (PRLIBS) technique which can significantly reduce the polarized emission from laser plasma by placing a polarizer in front of the detector, is a powerful tool to improve line-to-continuum ratio in LIBS application. It is shown that the continuum emission from the plasma produced through ablating an Al sample by nanosecond laser pulses is much more polarized than the discrete line emission with single-pulse PRLIBS technique. The effects of laser fluence, and detection angle on the Al polarization spectrum are systematically explored experimentally. The calculated result of polarization spectrum as a function of laser fluence shows that it is in agreement with the experimental observations.

Key words: polarization-resolved laser-induced breakdown spectroscopy, laser plasma, S/N ratio

中图分类号:  (Laser spectroscopy)

  • 42.62.Fi
52.38.Mf (Laser ablation)