Acta Photonica Sinica, Volume. 42, Issue 12, 1392(2013)
Effect of Carbon Chamber Spatial Confinement on Metallic Laser Plasma Radiation
In order to improve the quality of laserinduced breakdown spectroscopy and derive the optimal experiment condition, the change of the radiation intensity of laserinduced stainless steel plasma with and without a small carbon chamber is analyzed, which is excited by a high energy rubidium glass pulsed laser. The mechanism of the laser induced plasma radiation intensity is discussed by measuring the electron temperature and electron density. The results show that when laser plasma is confined by a small carbon chamber with the height 9.0 mm and the internal diameter 4.0 mm, the spectral line intensities and signaltonoise ratio of the sample elements increase substantially. So the spectral quality can improve effectively by using the method of spatial confinement.
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CHEN Jinzhong, MA Ruiling, WANG Jing, LI Xu, SU Hongxin. Effect of Carbon Chamber Spatial Confinement on Metallic Laser Plasma Radiation[J]. Acta Photonica Sinica, 2013, 42(12): 1392
Received: Apr. 15, 2013
Accepted: --
Published Online: Dec. 16, 2013
The Author Email: Jinzhong CHEN (chenjinzhongcn@126.com)