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Real-time THz imaging of large objects based on the triangulation method

 
: Herrmann, M.; Beigang, R.

:

Institute of Electrical and Electronics Engineers -IEEE-:
Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics 2006. Proceedings. Vol.1 : Shanghai, China, 18 - 22 September 2006
Piscataway, NJ: IEEE, 2006
ISBN: 1-4244-0399-5
ISBN: 1-4244-0400-2
pp.191
International Conference on Infrared and Millimeter Waves (IRMMW) <31, 2006, Shanghai>
International Conference on Terahertz Electronics (THz) <14, 2006, Shanghai>
English
Conference Paper
Fraunhofer IPM ()

Abstract
We have built a THz Imaging setup for large objects where "large" is defined as "too big to fit on an optical table". THz radiation is focused on the object, and the radiation reflected or scattered under a finite angle is recorded with a CCD camera via EO sampling in real time. If an object has multiple reflecting or scattering surfaces, all of them cause different THz spots on the EO crystal, and the position of such a spot immediately reveals the 3D position of the illuminated area on the respective surface.

: http://publica.fraunhofer.de/documents/N-171679.html