THz real time imaging based on air ionizing in two color laser fields

Chao Meng; Dong-wen Zhang; Zhi-hui Lv; Xi-yu Du; Zeng-xiu Zhao; Jian-min Yuan

doi:10.1117/12.901629

11 August 2011 THz real time imaging based on air ionizing in two color laser fields

Chao Meng, Dong-wen Zhang, Zhi-hui Lv, Xi-yu Du, Zeng-xiu Zhao, Jian-min Yuan

Proceedings Volume 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications; 81951S (2011) https://doi.org/10.1117/12.901629
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

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.

Citation Download Citation

Chao Meng, Dong-wen Zhang, Zhi-hui Lv, Xi-yu Du, Zeng-xiu Zhao, and Jian-min Yuan "THz real time imaging based on air ionizing in two color laser fields", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951S (11 August 2011); https://doi.org/10.1117/12.901629

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