V. V. Kornienko, A. N. Tuchak, P. V. Yakunin, I. Naumova, G. Kitaeva
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PPLN Crystals for Nonlinear-optical Detection of Terahertz Wave Radiation
Periodically poled lithium niobate crystals can be utilized in nonlinear-optical spectral brightness detectors of terahertz range. In this paper characteristics of detectors were determined by analyzing spectra of spontaneous parametric down- and up-conversion in these crystals.