Volume 10 Issue 1
Jan.  2017
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DING Li, DING Xi, YE Yang-yang, ZHU Yi-ming. Overview of passive terahertz imaging systems for indoor concealed detection[J]. Chinese Optics, 2017, 10(1): 114-121. doi: 10.3788/CO.20171001.0114
Citation: DING Li, DING Xi, YE Yang-yang, ZHU Yi-ming. Overview of passive terahertz imaging systems for indoor concealed detection[J]. Chinese Optics, 2017, 10(1): 114-121. doi: 10.3788/CO.20171001.0114

Overview of passive terahertz imaging systems for indoor concealed detection

doi: 10.3788/CO.20171001.0114
Funds:

Supported by Natural Science Foundation of Shanghai 16ZR1423100

Foundation for the Youth of Colleges and Universities of Shanghai ZZsl15009

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  • Corresponding author: E-mail:ymzhu@usst.edu.cn
  • Received Date: 21 Sep 2016
  • Rev Recd Date: 15 Nov 2016
  • Publish Date: 25 Feb 2017
  • Terahertz wave has become a hot research point for body hidden objects detection applications due to its extremely low photon energy and the strong penetration properties to non-polar material. In this paper, taking indoor body concealed detection as the main background, we briefly introduce the atmospheric propagation characteristics of THz waveband. Then we focus on the analysis of the indoor passive terahertz imaging principle and the key technology of imaging system based on radiation detection, including radiometer and scanning array mode, and review the research status of passive terahertz imaging technology in the field of human body security inspection at home and abroad. Considering system cost and imaging time, passive terahertz imaging system consisting of a certain number of high sensitivity radiation meters and scanning imaging mechanism will be the mainstream in the future for a long time.

     

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