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Proceedings Paper

THz real time imaging based on air ionizing in two color laser fields
Author(s): Chao Meng; Dong-wen Zhang; Zhi-hui Lv; Xi-yu Du; Zeng-xiu Zhao; Jian-min Yuan
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Paper Abstract

A terahertz (THz) imaging system based on air ionizing in two color laser fields is demonstrated. A 1mm thick (110)-oriented ZnTe is used for electro-optic sampling crystal. The depth of modulation of THz is 0.8%, which is much lager than that of optical rectification in ZnTe. Minus the background, the transmission images of the THz focus and a moving metal rod are demonstrated. The imaging speed is 34 fps. It is very useful to observe the movement of objects with terahertz in real time.

Paper Details

Date Published: 11 August 2011
PDF: 6 pages
Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951S (11 August 2011); doi: 10.1117/12.901629
Show Author Affiliations
Chao Meng, National Univ. of Defense Technology (China)
Dong-wen Zhang, National Univ. of Defense Technology (China)
Zhi-hui Lv, National Univ. of Defense Technology (China)
Xi-yu Du, National Univ. of Defense Technology (China)
Zeng-xiu Zhao, National Univ. of Defense Technology (China)
Jian-min Yuan, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8195:
International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications
X.-C. Zhang; Jianquan Yao; Cunlin Zhang; Zhenzhan Wang, Editor(s)

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