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Two-dimensional imaging of continuous-wave terahertz radiation using electro-optic detection

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3 Author(s)
Nahata, A. ; NEC Research Institute, Incorporated, Princeton, New Jersey 08540 ; Yardley, James T. ; Heinz, T.F.

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We report the demonstration of two-dimensional electro-optic imaging using continuous-wave THz radiation. Two single-frequency laser diodes serve as the optical source for both the generation and detection processes. The generation process occurs by mixing in a photoconductive emitter, while the detection process utilizes an electro-optic crystal and charge coupled device camera. The method permits far-IR imaging using only conventional optical components held at room temperature. In this demonstration, we image the two-dimensional properties of a THz beam focused into a 〈110〉 ZnTe electro-optic detection crystal. © 2002 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:81 ,  Issue: 6 )