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

fYear

2004

fDate

27 Sept.-1 Oct. 2004

Firstpage

277

Lastpage

278

Abstract

Frequency-selective high-T_c 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; YBa₂Cu₃O_7-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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2004.1422063

Filename

1422063