Study on plume produced by laser induced of stannum

Qingju Huang; Honghua Wang; Yunlong Huang; Jiping Lin

doi:10.1117/12.835720

31 August 2009 Study on plume produced by laser induced of stannum

Qingju Huang, Honghua Wang, Yunlong Huang, Jiping Lin

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73824S (2009) https://doi.org/10.1117/12.835720
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

In order to study the radiation properties of plasma plume induced by the interactions between laser and material, the radiation model of plasma plume is established. The properties of plasma plume induced by ultraviolet plused laser induced stannum in neon are thoroughly studied. The pulse width of XeCl ultraviolet laser adopted in the experiment is 10ns, the pulse energy is 90mJ, and the emitted laser wavelength is 308nm. The pressure of neon ambient gas is tunable between 13Pa and 101.3kPa in the induced chamber. Some color photographs of laser-induced plasma plume are obtained through swift and synchronous photograph. The experimental results show that the plasma plume induced by ultraviolet plused laser induced stannum has different color properties at different areas. Under the low pressure of 13Pa, the central area of plasma plume is white; the medial area is mixed color while the outermost area is blue. Each area of the plasma plume decreases gradually as the gas pressure increases, and the color becomes lighter as the atmospheric pressure increases. The main excition mechanisms of light-emission of plasma plume induced by ultraviolet plused laser induced stannumat at different areas are analyzed, and it is believed that there are different light-emission model at different areas. The excition mechanism of the central area of plasma plume is bremsstrahlung, as for medial area and outlying region, it is the combination excition of electrons and ions. The experimental phenomenon that could be explained by the excition model.

Citation Download Citation

Qingju Huang, Honghua Wang, Yunlong Huang, and Jiping Lin "Study on plume produced by laser induced of stannum", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73824S (31 August 2009); https://doi.org/10.1117/12.835720

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KEYWORDS

Plasma

Electrons

Ultraviolet radiation

Tin

Chemical species

Neon

Photography

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