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Highly sensitive Terahertz-wave Detection by using Nonlinear Parametric Conversion

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Abstract

We report on a highly sensitive detection of sub-nanosecond terahertz-waves with wide dynamic range using frequency up-conversion in a nonlinear MgO:LiNbO3 crystal at room temperature. The generation of the detection signal is based on optical parametric mixing between an input terahertz-wave radiation and an intense near-IR pumping beam. We obtained the dynamic range of more than 100 dB.

© 2013 Optical Society of America

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