Spectroscopy and Spectral Analysis, Volume. 33, Issue 8, 2039(2013)
Effect of Flat-Mirror Device on Laser-Induced Plasma Radiation Characteristics
To improve the quality of laser-induced breakdown spectroscopy, flat-mirror device was proposed. The effects of flat-mirror device on the radiation characteristics of laser-induced plasma were studied. The experimental results showed that when the device consisted of three flat-mirrors placed around the plasma, the spectral line intensity of Mg, Fe, Ba, Ti and Al increases by about 116.2%, 96.43%, 90.93%, 102.1% and 98.57% than that without flat-mirror device, and the signal-to-noise raises by around 39.17%, 32.48%, 38.07%, 39.95% and 21.30%, respectively. By measuring the plasma parameters, the mechanism of the radiation enhancement obtained with the device consisting of three flat-mirrors was explained. This method was an effective way to improve the detection capacity of LIBS.
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CHEN Jin-zhong, BAI Jin-ning, CHEN Zhen-yu, CHENG Chen, SUN Jiang, WEI Yan-hong. Effect of Flat-Mirror Device on Laser-Induced Plasma Radiation Characteristics[J]. Spectroscopy and Spectral Analysis, 2013, 33(8): 2039
Received: Dec. 11, 2012
Accepted: --
Published Online: Aug. 12, 2013
The Author Email: Jin-zhong CHEN (chenjinzhongcn@126.com)