NDLI: Terahertz spectral analysis by ac Josephson effect in high-T/sub c/ bicrystal junctions

Content Provider	IEEE Xplore Digital Library
Author	Divin, Y. Volkov, O. Pavlovskii, V. Poppe, U. Urban, K.
Copyright Year	2002
Abstract	A prototype of a terahertz Hilbert-transform spectrum analyzer based on a high-T/sub c/ Josephson junction integrated into a Stirling cooler has been developed. The detector response of YBa/sub 2/Cu/sub 3/O/sub 7-x/ Josephson grain-boundary junctions to monochromatic radiation with the frequency f in the range from 60 GHz to 5 THz has been studied. Odd-symmetric resonances near the voltages V=hf/2e in the responses /spl Delta/I(V) of these junctions to radiation with different frequencies f have been observed in a decade of spectral range for any operating temperature between 30 to 85 K. Decreasing the junction temperature from 85 to 30 K by a Stirling cooler, the spectral analysis could be made in two decades of spectral range. A resolving power /spl delta/f/f/spl sim/10/sup -3/ has been shown in the terahertz spectral analysis with the low-resistive Josephson junctions. As an example of application of this analyzer, an optimization of the single-line operation of a far-infrared optically-pumped CH/sub 3/OH laser has been demonstrated.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	582
Ending Page	585
Page Count	4
File Size	458622
File Format	PDF
ISSN	10518223
Volume Number	11
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spectral analysis Josephson effect Josephson junctions Frequency Voltage Telephony Electromagnetic radiation Radiation detectors Solid state circuits Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Spectral range of the ac Josephson effect in [001]-tilt YBa/sub 2/Cu/sub 3/O/sub 7-x/ bicrystal junctions

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Current-phase relation of high-T/sub c/ bicrystal and step-edge Josephson junctions

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