太赫兹技术是近年来兴起的一项高新技术,在公共安全领域有着巨大的应用前景,尤其是在人员安检和爆炸物毒品检测等方向。本期,我们特别邀请太赫兹专家姚建铨院士作为专访嘉宾,为大家介绍太赫兹技术和其应用前景,以及太赫兹技术的发展对于公共安全领域的影响。 Terahertz technology is a hi-tech emerging in recent years and has great application prospects in the field of public safety, especially in the areas of personnel security and explosives drug testing. In this issue, we specially invite academician Yao Jianquan, a THz expert, as an interview guest to introduce the technology of terahertz and its application prospects as well as the impact of the development of terahertz technology in the field of public safety.