Evaluating the spectral sensitivity of the nonlinear-optical terahertz wave radiation detecors via spontaneous parametric down-conversion spectra |
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| Authors: | V V Kornienko G Kh Kitaeva I I Naumova A N Tuchak A N Penin P V Yakunin |
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| Institution: | 1. M.V. Lomonosov Moscow State University, Moscow, 119991, Russia
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| Abstract: | Principal parameters of the nonlinear-optical crystals are analyzed, which govern the spectral sensitivity of the terahertz wave detectors based on the frequency conversion from terahertz to optical range. A method is developed and experimentally demonstrated for characterizing these parameters. The method is founded on the spontaneous parametric down-conversion spectra observation without external terahertz wave radiation. |
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