Direct detection of the parametrically generated half-harmonic voltage in a Josephson tunnel junction
- 1 September 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 29 (5), 317-319
- https://doi.org/10.1063/1.89061
Abstract
The first direct observation of the parametrically generated half‐harmonic voltage in a Josephson tunnel junction is reported. A microwave signal at f=17.25 GHz is applied to the junction dc current biased at zero voltage such that the Josephson plasma resonance fp=f/2. Under these conditions a large‐amplitude microwave signal is emitted at fp provided the input power exceeds a threshold value. The results are compared to existing theory.Keywords
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