摘要
太赫兹波（terahertz，THz，T-ray）是指频率介于0．1～10THz之间的电磁辐射，在电磁波谱上位于微波和远红外线之间。大多数爆炸物、毒品在此波段有特征吸收。与在公共安全领域检测武器、爆炸物、毒品等危险品的传统方法相比，太赫兹辐射能量低，不会产生电离辐射，也不会引起安全担忧。而且，太赫兹波对于衣物等大多数包装材料有很强的穿透力，对物质的检测可以做到高灵敏、无损伤和远距离，因此在反恐、毒品、安全检测等方面具有显著潜在优势。文章介绍了国内外太赫兹时域光谱技术（terahertz timedomainspectroscopy，THz-TDS）在爆炸物及毒品检测方面的研究最新进展；详细讨论了黑索金（RDX）的研究现状，并初步探讨了影响实验结果的几种因素。
Terahertz waves（THz, T-ray） lie between far-infrared and microwave in electromagnetic spectrum with frequency from 0. 1 to 10 THz. Many explosives and illicit drugs show characteristic spectral features in the terahertz. Compared with conventional methods of detecting a variety of threats, such as weapons, explosives and illegal drugs, THz radiation is low fre- quency and non-ionizing, and does not give rise to safety concerns. Moreover, THz can penetrate many barrier materials, such as clothing and common packaging materials. THz technique has. a great potential and advantage in antiterrorism and security inspection of explosives and illegal drugs due to the ability of high-sensitivity, nondestructive and stand-off inspection of many substances. The present paper summarizes the latest progress in the application of terahertz time domain spectroscopy （THz-TDS） to explosives and illegal drugs. Studies on RDX are discussed in details and many factors affecting experiments are also intro- duced.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2008年第5期966-969,共4页
Spectroscopy and Spectral Analysis
基金
上海市基础重大项目(06dj14008)
国家自然科学基金项目(10675158)资助
关键词
太赫兹时域光谱
爆炸物
毒品
检测
THz-TDS, Explosive, Illegal drug
Detection and identification
作者简介
刘桂锋，1980年生，中国科学院上海应用物理所在读硕士研究生e-mail：liuguifeng29@163．com．
通讯联系人e-maihwfwang@sinap．ac．cn
