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Accession Number:
ADA076590
Title:
SIS Quasiparticle Junctions As Microwave Photon Detectors,
Corporate Author:
CALIFORNIA UNIV BERKELEY DEPT OF PHYSICS
Report Date:
1979-10-01
Abstract:
The strong nonlinearity of the quasiparticle tunneling current in superconductor-insulator-superconductor junctions near the full gap voltage 2 Deltae can be used for direct detection of microwave signals. Measurements at 36 GHz yielded a current responsivity of 3,5000 AW, which is within a factor of 2 of the quantum limited value eh-bar omega. The measured NEP of 2.6 or - 0.8 x 10 to the -16th power Wsq-rt. Hz is the lowest value reported to date and can probably be improved significantly. The experimental results are compared with both the standard classical analysis and photon assisted tunneling theory. Author
Pages:
0012
Contract Number:
N00014-75-C-0496
File Size:
5.35MB
