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Calculation of the Self-absorption of a Laser-induced Magnesium Plasma
J. He and Q.G. Zhang

In order to study the self absorption of laser induced plasma, using the escape factor, we study the self absorption of laser induced magnesium plasma at 285.2127 nm in this paper. The theoretical total radiance, the escape factor and the real radiance for Gaussian and Lorentzian profiles are discussed. The self-absorption of the MgI 285.2127 nm line is explained, and some useful conclusions are drawn. This study is significant in the analysis of self-absorption of laser-induced plasma.

Keywords: Self-absorption, plasma, escape factor, radiance, Gaussian profile, Lorentzian profile

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