太赫兹远距离快速扫描成像系统的设计

闫海涛, 邓朝, 郭澜涛, 张存林

闫海涛, 邓朝, 郭澜涛, 张存林. 太赫兹远距离快速扫描成像系统的设计[J]. 应用光学, 2016, 37(2): 183-186. DOI: 10.5768/JAO201637.0201006
引用本文: 闫海涛, 邓朝, 郭澜涛, 张存林. 太赫兹远距离快速扫描成像系统的设计[J]. 应用光学, 2016, 37(2): 183-186. DOI: 10.5768/JAO201637.0201006
Yan Haitao, Deng Chao, Guo Lantao, Zhang Cunlin. Design of terahertz rapid standoff imaging system[J]. Journal of Applied Optics, 2016, 37(2): 183-186. DOI: 10.5768/JAO201637.0201006
Citation: Yan Haitao, Deng Chao, Guo Lantao, Zhang Cunlin. Design of terahertz rapid standoff imaging system[J]. Journal of Applied Optics, 2016, 37(2): 183-186. DOI: 10.5768/JAO201637.0201006

太赫兹远距离快速扫描成像系统的设计

基金项目: 

国家自然科学基金(51471111)

详细信息
    作者简介:

    闫海涛(1980-),女,山西平遥人,硕士,主要从事太赫兹光谱与成像方面的研究工作。 E-mail: yanhaitao@126.com

  • 中图分类号: TN202;0439

Design of terahertz rapid standoff imaging system

  • 摘要: 在太赫兹成像技术研究中,分辨率、成像时间和距离是非常关键的参数指标,为了推动太赫兹成像技术的实用化,特别是提高对隐藏危险物品的远距离快速预警检测能力,提出被动式远距离太赫兹快速扫描成像系统。该系统采用单个太赫兹探测器和光机扫描相结合的方式。扫描子系统中,将六面体转镜置于离轴三反镜系统的平行光路中,使扫描范围从广泛研究中采用的物空间转换到像空间有效缩小了扫描区域,缩短了成像时间。本套被动式扫描成像系统主要参数:探测器频率0.34 THz,成像距离10 m,视场1.51.5,成像分辨率3 cm,成像时间1 s。
    Abstract: Resolution, imaging time and distance are crucial parameters for terahertz imaging technology. In order to improve the terahertz imaging capability for practical use, especially for quick identification and alarm for hidden objects in a long distance, a passive rapid terahertz scanning imaging system for long distance was presented. In terms of core scanning system,a hexahedral mirror for twodimensional fast scanning through high speed rotating and reciprocating swing combination was employed. The system was placed in the parallel light path of the offaxis threemirror system. The scan area focused on image space instead of the object space, which could effectively narrow the scan area, so as to shorten the imaging time. The main parameters of the passive scanning imaging system are as follows: the detector frequency is 0.34 THz, the imaging distance is 10 m, the field of view is 1.51.5, the resolution is 3 cm, and the imaging time is 1 s.
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出版历程
  • 刊出日期:  2016-03-14

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