Mm-wave harmonic generation in an array of SIS junctions
Paper in proceeding, 2014

We report the first experimental off-chip detection of frequency multiplication in a distributed array of Superconductor-Insulator-Superconductor (SIS) junctions. A test device consisting of series array of 68 Nb/Al-AlOx/Nb tunnel junctions was designed to study generation of the second harmonic. We measured extremely sharp spectral signals, associated with the × 2 frequency multiplication. Distinct single and multi-photon processes were observed in the test device response operated in quantum mode. The mechanism of device saturation was experimentally studied. The test device when connected to the input of an SIS mixer, and pumped, showed 10-20% increase in the SIS junction dark current.


Bhushan Billade

Chalmers, Earth and Space Sciences, Onsala Space Observatory

Alexey Pavolotskiy

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Victor Belitsky

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 507 PART 4 042005

Subject Categories

Atom and Molecular Physics and Optics



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