Superconducting diode as high-frequency sound detector |
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| Authors: | Goldstein Y. Abeles B. Keller K.R. |
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| Affiliation: | RCA Laboratories, Princeton, USA; |
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| Abstract: | The properties of a broadband sound detector utilising microwave-phonon-assisted tunnelling in superconductors are described. Using Al?Pb tunnel diodes at 1.3°K, the sensitivity of the detector to 9.3 × 109 c/s sound waves was found to be approximately 2 × 10?4 V/W cm?2. At high frequencies the sensitivity is expected to increase as the square of the sound frequency. |
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