Title :
Terahertz Josephson detectors and Hilbert spectroscopy
Author :
Divin, Y.Y. ; Liatti, M.V. ; Shirotov, V.V. ; Volkov, O.Y. ; Poppe, U. ; Gubankov, V.N. ; Urban, K.
Author_Institution :
IFF, Forschungszentrum Julich GmbH, Germany
fDate :
27 Sept.-1 Oct. 2004
Abstract :
Frequency-selective high-Tc Josephson detectors have been fabricated and characterized. A spectral range from 15 GHz to 4.3 THz has been demonstrated for these detectors. A power dynamic range of 50 dB and a noise equivalent power of 10-14 W/Hz12/ have been realized. A spectral resolution δf/f 10-3 has been achieved in the terahertz range. As an alternative to Fourier-transform spectroscopy, fast Hilbert-transform spectroscopy, based on these detectors, have been applied for various CW and pulsed terahertz sources.
Keywords :
Fourier transform spectra; Hilbert transforms; barium compounds; high-temperature superconductors; spectral analysis; sputter deposition; superconducting epitaxial layers; superconducting junction devices; vapour phase epitaxial growth; yttrium compounds; 15 GHz to 4.3 THz; 50 dB; CW sources; Fourier transform spectroscopy; Hilbert spectroscopy; NdGaO3; YBa2Cu3O7-x; fast Hilbert transform spectroscopy; noise equivalent power; power dynamic range; pulsed terahertz sources; spectral range analysis; spectral resolution; terahertz Josephson detectors; Broadband antennas; Detectors; Dynamic range; Frequency; Josephson junctions; Optical polarization; Spectroscopy; Substrates; Temperature distribution; Voltage;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422063
