Niobium point-contact Josephson-junction behavior at 604 GHz
- 1 August 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 31 (3), 227-229
- https://doi.org/10.1063/1.89616
Abstract
We have measured the ac Josephson effect in Nb point contacts at 604 GHz (496 μm). We find the coupling of the far‐infrared radiation to the point contact to depend in a simple manner on the resistance of the contact. The behavior of the high‐resistance point contacts (50⩽R⩽200 Ω) is very reproducible, allowing a quantitative comparison of the data to the frequency‐dependent Werthamer theory. We also account for the effects of noise and heating and compare these to Tinkham’s heating theory.Keywords
This publication has 10 references indexed in Scilit:
- Heating effects in high-frequency metallic Josephson devices: Voltage limit, bolometric mixing, and noiseJournal of Applied Physics, 1977
- Spectral response of point-contact Josephson junctionsJournal of Applied Physics, 1977
- Efficient high-power operation of the cw far-infrared waveguide laserApplied Physics Letters, 1976
- Modulated submillimeter laser interferometer system for plasma density measurementsApplied Optics, 1976
- Intrinsic response time of a Josephson tunnel junctionPhysical Review B, 1976
- Influence of Microwave Radiation on Current-Voltage Characteristic of Superconducting Weak LinksJournal of Applied Physics, 1972
- Intrinsic Fluctuations in the Driven Josephson OscillatorPhysical Review Letters, 1971
- IMPROVED COUPLING TO INFRARED WHISKER DIODES BY USE OF ANTENNA THEORYApplied Physics Letters, 1970
- Noise in a Driven Josephson OscillatorPhysical Review B, 1969
- Nonlinear Self-Coupling of Josephson Radiation in Superconducting Tunnel JunctionsPhysical Review B, 1966