Real time, passive mm wave and Terahertz imaging generally requires arrays of receivers in the system focal plane, resulting in high component count and cost. This papers gives an alternative approach based on image data fusion where low frame rate Terahertz imagery is combined with video frame rate optical data to give an apparently video rate Terahertz data stream.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew Hogbin, "Applying terahertz technology to security", Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 59891G (7 November 2005); doi: 10.1117/12.631304; https://doi.org/10.1117/12.631304

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