Terahertz real-time imaging for nondestructive detection

LiangLiang Zhang; Nick Karpowicz; CunLin Zhang; YueJin Zhao

doi:10.1117/12.759826

4 January 2008 Terahertz real-time imaging for nondestructive detection

LiangLiang Zhang, Nick Karpowicz, CunLin Zhang, YueJin Zhao

Proceedings Volume 6840, Terahertz Photonics; 68400Y (2008) https://doi.org/10.1117/12.759826
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

We present a real time imaging measurement in the terahertz (THz) frequency region. The dynamic subtraction technique is used to reduce long-term optical background drift. The reflective images of two targets, a Nikon camera's lens cap and a plastic toy gun, are obtained. For the lens cap, the image data were processed to be false color images. For the toy gun, we show that even under an optically opaque canvas bag, a clear terahertz image is obtained. It is shown that terahertz real time imaging can be used to nondestructively detect concealed objects.

Citation Download Citation

LiangLiang Zhang, Nick Karpowicz, CunLin Zhang, and YueJin Zhao "Terahertz real-time imaging for nondestructive detection", Proc. SPIE 6840, Terahertz Photonics, 68400Y (4 January 2008); https://doi.org/10.1117/12.759826

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