Laser induced aluminiun plasma analysis by optical emission spectroscopy in a nitrogen background gas

被引：2

作者：

Chamorro, J. C. ^{[1
]}

Uzuriaga, J. ^{[1
]}

Riascos, H. ^{[1
]}

机构：

[1] Univ Tecnol Pereira, Grp Plasma Laser & Aplicac, Pereira 097, Colombia

来源：

14TH LATIN AMERICAN WORKSHOP ON PLASMA PHYSICS (LAWPP 2011) | 2012年 / 370卷

关键词：

D O I：

10.1088/1742-6596/370/1/012051

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We studied an Al plasma generated by a Nd:YAG laser with a laser fluence of 4 J/cm(2), a wavelength of 1064 nm, energy pulse of 500 mJ and 10 Hz repetition rate. We studied their spectral characteristics at various ambient nitrogen pressures by optical emission spectroscopy (OES). The N-2 gas pressure was varied from 20 mTorr to 150 mTorr. In Al plume, both atomic and ionic spectra were observed. The electron temperature and electron number density of the plume as of the function ambient gas pressure were determined. The electron temperature was calculated by using the Boltzmann-plot method and the number density was calculated considering the stark effect as dominating on the emission lines.

引用

页数：5

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