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Terahertz Active and Passive Imaging



Erich N. Grossman, Joshua A. Gordon, David R. Novotny, Richard A. Chamberlin


We describe the results of bistatic scattering measurements covering 325-650 GHz on a series of wellcharacterized random rough test surfaces. These have implications for active THz imagers that use coherent sources for illumination. The mean scattered intensity is compared to theoretical predictions based on an integral equation method, and the fluctuations are examined in terms of the theory for fully developed speckle. We also present a preliminary, fully passive image made using a recently developed 650 GHz, InP HEMT low-noise amplifier, and compare it to a very similar passive image made using a cryogenic (4K) hotspot microbolometer.
Proceedings Title
Proceedings of European Conference on Antennas and Propagation
Conference Dates
April 7-11, 2014
Conference Location
The Hague
Conference Title
8th European Conference on Antennas and Propagation


Grossman, E. , Gordon, J. , Novotny, D. and Chamberlin, R. (2014), Terahertz Active and Passive Imaging, Proceedings of European Conference on Antennas and Propagation, The Hague, -1 (Accessed May 22, 2024)


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Created April 11, 2014, Updated June 2, 2021