Extracting Time-Resolved Information from Time-Integrated Laser-Induced Breakdown Spectra

被引：36
|
作者：
Grifoni, Emanuela [1 ]
Legnaioli, Stefano [1 ]
Lezzerini, Marco [2 ]
Lorenzetti, Giulia [1 ]
Pagnotta, Stefano [1 ]
Palleschi, Vincenzo [1 ,3 ]
机构：
[1] Res Area Pisa, Appl & Laser Spect Lab, ICCOM CNR, I-56124 Pisa, Italy
[2] Univ Pisa, Dept Earth Sci, I-56126 Pisa, Italy
[3] Univ Pisa, Dept Civilizat & Forms Knowledge, I-56126 Pisa, Italy
来源：
JOURNAL OF SPECTROSCOPY | 2014年 / 2014卷
关键词：
6;
D O I：
10.1155/2014/849310
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Laser-induced breakdown spectroscopy (LIBS) data are characterized by a strong dependence on the acquisition time after the onset of the laser plasma. However, time-resolved broadband spectrometers are expensive and often not suitable for being used in portable LIBS instruments. In this paper we will show how the analysis of a series of LIBS spectra, taken at different delays after the laser pulse, allows the recovery of time-resolved spectral information. The comparison of such spectra is presented for the analysis of an aluminium alloy. The plasma parameters (electron temperature and number density) are evaluated, starting from the time-integrated and time-resolved spectra, respectively. The results are compared and discussed.
引用
收藏
页码：1 / 5
页数：5
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