中国激光, 2019, 46 (6): 0614029, 网络出版: 2019-06-14
太赫兹线阵快速扫描成像 
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Terahertz Linear Array Fast Scanning Imaging
图 & 表
图 1. 0.3 THz线阵扫描成像系统及性能测试结果。(a)系统示意图;(b)系统照片;(c)太赫兹焦线图像;(d)从图1(c)提取的强度曲线; (e)钢质分辨率板照片; (f)分辨率板的太赫兹图像
Fig. 1. 0.3 THz linear array scanning imaging system and results of performance testing. (a) Schematic illustration of imaging system; (b) photo of imaging system; (c) image of THz focal line; (d) intensity curve extracted from Fig. 1(c) along dashed line; (e) photo of steel resolution test target; (f) THz image of resolution test target
图 2. 聚乙烯样品内部缺陷的太赫兹成像。(a)划痕缺陷样品;(b)划痕缺陷样品的太赫兹图像;(c)从图2(b)沿虚线位置提取的强度曲线;(d)内部孔缺陷样品;(e)内部孔缺陷样品的太赫兹图像;(f)从图2(e)沿虚线位置提取的强度曲线
Fig. 2. THz imaging of internal defects in polyethylene samples. (a) Sample with scratch defects; (b) THz image of sample with scratch defects; (c) intensity curve extracted from Fig.2(b) along dashed line; (d) sample with internal hole defects; (e) THz image of sample with internal hole defects; (f) intensity curve extracted from Fig. 2(e) along dashed line
图 3. 聚乙烯水管缺陷的太赫兹成像。(a)、(c)水管表面的两个不同缺陷照片;(b)、(d)两个缺陷的太赫兹图像;(e)、(g)隐藏在水管内部的金属垫圈和金属刀片的照片;(f)、(h)隐藏在水管内部的垫圈和刀片的太赫兹图像
Fig. 3. THz imaging of defects on polyethylene water pipe. (a), (c) Photos of two different defects on surface of polyethylene water pipe; (b), (e) THz images of two defects; (e), (g) photos of metallic washer and blade hidden in water pipe; (f), (h) THz images of washer and blade hidden in water pipe
表 1不同太赫兹成像系统的性能比较
Table1. Performance comparison of various THz imaging systems
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王彪, 王新柯, 俞跃, 张岩. 太赫兹线阵快速扫描成像[J]. 中国激光, 2019, 46(6): 0614029. Biao Wang, Xinke Wang, Yue Yu, Yan Zhang. Terahertz Linear Array Fast Scanning Imaging[J]. Chinese Journal of Lasers, 2019, 46(6): 0614029.
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