Methods and apparatus for rapid scanning continuous wave...

Details Methods and apparatus for rapid scanning continuous wave... Methods and apparatus for rapid scanning continuous wave...

2011-07-26

2011-07-26

Connolly, Patrick J (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

C356S485000

Reexamination Certificate

active

07986413

ABSTRACT:
Methods and apparatus are provided employing rapid scanning continuous wave terahertz spectroscopy and imaging for the non-destructive evaluation of materials such as animal hides and natural cork, and explosive detection, concealed weapon detection, and drug detection. A system employing an aperiodic detector array and implementing phase modulation at 100 kHz significantly reduces the imaging time and enables interferometric images of a THz point source to be obtained at several frequencies between 0.3 and 0.95 THz.

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