Title :
Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions
Author :
Divin, Y.Y. ; Liatti, M.V. ; Tkachev, D.A. ; Pavlovskii, V.V. ; Shirotov, V.V. ; Volkov, O.Y. ; Poppe, U. ; Jia, C.L. ; Gubankov, V.N. ; Urban, K.
Author_Institution :
IFF-IMF, Forschungszentrum Julich GmbH
Abstract :
Frequency-selective and broadband high-Tc Josephson detectors have been fabricated and characterized. A spectral range from 15 GHz to 5.3 THz has been demonstrated for these detectors. A power dynamic range of 50 dB and a noise equivalent power of 10-14 W/Hz1/2 have been realized. A spectral resolution deltaf/f of 10-3 has been achieved in the terahertz range. As an alternative to Fourier-transform spectroscopy, fast Hilbert-transform spectroscopy, based on these detectors, has been applied for various cw and pulsed terahertz sources
Keywords :
Fourier transform spectroscopy; Hilbert transforms; Josephson effect; high-temperature superconductors; submillimetre wave detectors; superconducting junction devices; 15 GHz to 5.3 THz; Fourier-transform spectroscopy; broadband high-Tc Josephson detectors; fast Hilbert-transform spectroscopy; high-Tc Josephson junctions; pulsed terahertz sources; spectral resolution; spectroscopy; terahertz detection; Detectors; Dynamic range; Electrodes; Frequency; Josephson effect; Josephson junctions; Spectroscopy; Substrates; Superconducting epitaxial layers; Voltage;
Conference_Titel :
Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
953-6037-44-0
DOI :
10.1109/ICECOM.2005.204940
