Parametric amplification and oscillation at 36 GHz using a point-contact Josephson junction
- 1 March 1977
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 48 (3), 1321-1326
- https://doi.org/10.1063/1.323777
Abstract
We have observed doubly degenerate parametric amplification and oscillation at 36 GHz from a single point‐contact Josephson junction. The experimental results agree qualitatively with theoretical calculations based on the resistively shunted junction model. The estimated noise temperature of an amplifier with 11 dB net gain is consistent with zero, but has an upper limit of 50 K. Attempts to observe parametric amplification in the singly degenerate mode with a pump frequency of 72 GHz were not successful.Keywords
This publication has 20 references indexed in Scilit:
- Noise in Josephson point contacts with and without rf biasApplied Physics Letters, 1974
- Amplification of microwaves by superconducting microbridges in a four-wave parametric modeApplied Physics Letters, 1974
- Conversion gain in a Josephson effect mixerApplied Physics Letters, 1974
- Some analytical results for the resistively shunted Josephson junctionRevue de Physique Appliquée, 1974
- Four photon parametric amplificationRevue de Physique Appliquée, 1974
- Parametric excitation of plasma oscillations in Josephson junctionsRevue de Physique Appliquée, 1974
- Parametric excitation of plasma oscillations in Josephson JunctionsJournal of Applied Physics, 1973
- Sensitivity of Josephson junctions in video detection of microwave and millimeter-wave radiationJournal of Applied Physics, 1972
- Analog Simulation of a Josephson JunctionReview of Scientific Instruments, 1972
- Far Infrared Response of Point-Contact Josephson JunctionsPhysical Review Letters, 1966