中国物理B ›› 2012, Vol. 21 ›› Issue (7): 74204-074204.doi: 10.1088/1674-1056/21/7/074204

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

The high dependence of polarization resolved laser-induced breakdown spectroscopy on experimental conditions

Nakimana Agnes, 郝作强, 刘佳, 陶海岩, 高勋, 孙长凯, 林景全   

  1. School of Science, Changchun University of Science and Technology, Changchun 130022, China
  • 收稿日期:2011-11-16 修回日期:2011-12-27 出版日期:2012-06-01 发布日期:2012-06-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60978014, 11074027, and 61178022), the Funds from Jilin Provincial Science and Technology Department, China (Grant Nos. 20100521, 20100168, and 20111812), the Science and Technology Division of Changchun City, China (Grant No. 09GH01), and the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry, China.

The high dependence of polarization resolved laser-induced breakdown spectroscopy on experimental conditions

Nakimana Agnes, Hao Zuo-Qiang(郝作强), Liu Jia(刘佳), Tao Hai-Yan(陶海岩), Gao Xun(高勋), Sun Chang-Kai(孙长凯), and Lin Jing-Quan(林景全)   

  1. School of Science, Changchun University of Science and Technology, Changchun 130022, China
  • Received:2011-11-16 Revised:2011-12-27 Online:2012-06-01 Published:2012-06-01
  • 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, and 61178022), the Funds from Jilin Provincial Science and Technology Department, China (Grant Nos. 20100521, 20100168, and 20111812), the Science and Technology Division of Changchun City, China (Grant No. 09GH01), and the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry, China.

摘要: It is shown that the continuum emission produced by the Al alloy ablated by femtosecond laser pulses is much more polarized than the characteristic lines of elements. A Glan--Thomson polarizer is used in the laser-induced breakdown spectroscopy experiment to investigate the polarization effect. The use of polarizer at its minimal transmission increases the signal-to-noise ratio. The effects of angle of detection, focal position, and pulse energy on the signal-to-noise ratio are also studied.

关键词: laser-induced breakdown spectroscopy, femtosecond laser, plasma, polarization

Abstract: It is shown that the continuum emission produced by the Al alloy ablated by femtosecond laser pulses is much more polarized than the characteristic lines of elements. A Glan--Thomson polarizer is used in the laser-induced breakdown spectroscopy experiment to investigate the polarization effect. The use of polarizer at its minimal transmission increases the signal-to-noise ratio. The effects of angle of detection, focal position, and pulse energy on the signal-to-noise ratio are also studied.

Key words: laser-induced breakdown spectroscopy, femtosecond laser, plasma, polarization

中图分类号:  (Laser spectroscopy)

  • 42.62.Fi
78.47.J- (Ultrafast spectroscopy (<1 psec))