Open AccessStudy on the emission spectrum of AlO radical B2+X2+ transition using laser-induced breakdown spectroscopy
Author(s) -
Lianbo Guo,
Rongfei Hao,
Hao Zeng,
Kuohu Li,
Meng Shen,
Ruifeng Zhao,
Xiangyou Li,
Xiaoyan Zeng
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.224211
Subject(s) - laser , materials science , plasma , spectroscopy , emission spectrum , atomic physics , laser induced breakdown spectroscopy , intensity (physics) , ion , pulse (music) , emission intensity , ceramic , atom (system on chip) , spectral line , analytical chemistry (journal) , optics , chemistry , physics , photoluminescence , optoelectronics , quantum mechanics , astronomy , organic chemistry , chromatography , detector , computer science , composite material , embedded system
Based on laser-induced breakdown spectroscopy, a short pulse laser is used to excite Al2O3 (content of 99%) ceramic to produce ceramic plasma. The plasma emission spectrum is collected, and 33 spectral lines of AlO radical B2+X2+ transition are obtained. The time-resolved AlO radical spectrum and its relationship with laser pulse energy are investigated. The results show that the emission spectrum of AlO radical appears later and lasts longer than those of Al atom and Al ion. With the increase of the laser pulse energy, the spectral intensity of AlO radical decreases and the time when the maximum spectral intensity appears moves backward. Finally, the ceramic plasma produced in air is compared with that produced in Ar environment. The results prove that the formation of AlO radical spectrum has an important relationship with O2 in air.