Ultrasensitive Proximity Josephson Sensor with Kinetic Inductance Read-Out

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dc.creatorGiazotto, F.
dc.creatorHeikkila, T. T.
dc.creatorHelisto, G. Pepe. P.
dc.creatorLuukanen, A.
dc.creatorPekola, J. P.
dc.date2008-02-18
dc.date.accessioned2026-07-07T09:49:40Z
dc.date.available2026-07-07T09:49:40Z
dc.descriptionWe propose a mesoscopic kinetic-inductance radiation detector based on a long superconductor--normal metal--superconductor Josephson junction. The operation of this proximity Josephson sensor (PJS) relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of the critical current. Coupled with a dc SQUID readout, the PJS is able to provide a signal to noise (S/N) ratio up to ~10^3 in the THz regime if operated as calorimeter, while electrical noise equivalent power (NEP) as low as ~7x10^{-20} W(Hz)^(-1/2) at 200 mK can be achieved in the bolometer operation. The high performance together with the ease of fabrication make this structure attractive as an ultrasensitive cryogenic detector of THz electromagnetic radiation.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0802.2483
dc.identifierhttp://arxiv.org/abs/0802.2483
dc.identifierAppl. Phys. Lett. 92, 162507 (2008)
dc.identifierdoi:10.1063/1.2908922
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164675
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleUltrasensitive Proximity Josephson Sensor with Kinetic Inductance Read-Out
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