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

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

1

Lastpage

4

Abstract

Frequency-selective and broadband high-T_c 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/Hz^1/2 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-T_c Josephson detectors; fast Hilbert-transform spectroscopy; high-T_c 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on

Conference_Location

Dubrovnik

Print_ISBN

953-6037-44-0

Type

conf

DOI

10.1109/ICECOM.2005.204940

Filename

1613447