太赫兹光谱技术在安全检查中的应用及研究进展

Application of terahertz spectroscopic technology in safety inspection and research progress

太赫兹波(THz)是一种波长0.03~3.00mm的电磁波。由于其具有高穿透性、指纹谱特性及生物安全性等独特的优势,在安全检查、航空航天、生物医学、天文考古、雷达通信等领域展现了巨大的应用前景,其中在安全检查领域中对爆炸物及刀具、枪支等危险品的检测更是近年来国内外关注的热点问题。该文基于经典的太赫兹光谱、成像检测技术,对太赫兹波在侦检不同爆炸物及刀具、枪支携带研究中的最新进展进行综述,以分析当前太赫兹波技术用于安全检查中亟待解决的问题并进行展望。

Terahertz wave(THz),an electromagnetic wave with a wavelength range of 0.03- 3.00 mm.Due to its unique advantages such as high penetration,fingerprint spectrum characteristics,and bio-safety,it has shown great application prospects in security inspections,aerospace,biomedical,astronomical archeology,and radar communications.Among them,in the field of security inspection,the detection of dangerous goods such as explosives and knives and guns has been a hot topic for recent years.This paper introduces the classic terahertz spectrum and imaging detection techniques,also summarizes the latest progress of terahertz wave in detecting different explosives and weapons carrying,and analyzes the problem demanding prompt solution of the terahertz technology in security inspection application at present and conducts the expectation.