Studies on 2,4-DNT Mixtures Using Reflection Terahertz Time Domain Spectroscopy for Explosives Detection

被引：0
|
作者：
Zhou Zhen [1 ,2 ]
Zhen An-Tao [1 ]
Feng Li-Shuang [2 ]
机构：
[1] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA
[2] Beijing Univ Aeronaut & Astronaut, Sch Instrument Sci & Optoelect Engn, Beijing 100083, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2009年 / 26卷 / 03期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Absorption spectra (0.2-1.8 THz) of the mixtures of explosive 2,4-DNT and polyethylene(PE) at different ratios are obtained using reflection terahertz time domain spectroscopy (THz-TDS). The pronounced absorption peak of 2,4-DNT at 1.08 THz is always observed for the mixtures with 2,4-DNT ratios above 20%. Experimental results demonstrate that more applicable and realistic THz-TDS in reflection geometry can be used to distinguish explosive mixed with other material having no THz fingerprints, and has a high potential in the detection of explosives.
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页数：3
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