Measurement of the spectral brightness of terahertz radiation in the process of nonlinear-optical detection |
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| Authors: | G. Kh. Kitaeva A. N. Penin A. N. Tuchak A. V. Shepelev P. V. Yakunin |
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| Affiliation: | 1.Faculty of Physics,Moscow State University,Moscow,Russia;2.Moscow State Textile University,Moscow,Russia |
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| Abstract: | A method has been proposed for the absolute measurement of the spectral brightness of terahertz radiation in the process of the parametric frequency conversion to the optical range. The method has a low threshold flux and does not require extrinsic references. The method simultaneously allows for the calibration of thermal fluctuations and the determination of the absolute local temperature of a nonlinear converter crystal. |
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