Femtosecond and nanosecond laser-induced breakdown spectroscopy of trinitrotoluene

被引：64
|
作者：
Dikmelik, Yamac [1 ]
McEnnis, Caroline [1 ]
Spicer, James B. [1 ]
机构：
[1] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 08期
关键词：
D O I：
10.1364/OE.16.005332
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Femtosecond and nanosecond laser-induced breakdown spectroscopy (LIBS) were used to study trinitrotoluene (TNT) deposited on aluminum substrates. Over the detection wavelength range of 200-785 nm, we have observed emission from CN and C-2 molecules as the marker for the explosive with femtosecond LIBS. In contrast, the signal for nanosecond LIBS of TNT is dominated by emission from the elemental constituents of the explosive. Aluminum emission lines from the substrate are also observed with both femtosecond and nanosecond excitation and indicate the role played by the substrate in the interaction. (C) 2008 Optical Society of America.
引用
收藏
页码：5332 / 5337
页数：6
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