Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions

Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions

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 reso...

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Hauptverfasser: 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.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Detectors
Dynamic range
Electrodes
Frequency
Josephson effect
Josephson junctions
Spectroscopy
Substrates
Superconducting epitaxial layers
Voltage
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Zusammenfassung: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
DOI:10.1109/ICECOM.2005.204940