Measurement of the spectral brightness of terahertz radiation in the process of nonlinear-optical detection

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 th...

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Veröffentlicht in:	JETP letters 2010-09, Vol.92 (5), p.291-294
Hauptverfasser:	Kitaeva, G. Kh, Penin, A. N., Tuchak, A. N., Shepelev, A. V., Yakunin, P. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic Atoms Biological and Medical Physics Biophysics Molecular Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Quantum Information Technology Radiations Solid State Physics Spectra Spintronics
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Beschreibung
Zusammenfassung:	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.
ISSN:	0021-3640 1090-6487
DOI:	10.1134/S0021364010170054