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Proceedings Paper

A parallel/series array of superconducting cold-electron bolometers with SIS' tunnel junctions
Author(s): Leonid Kuzmin
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Paper Abstract

A novel concept of the parallel/series array of Superconducting Cold-Electron Bolometers (SCEB) with a superconducting absorber and a SIS' (Superconductor-Insulator-Weak Superconductor) Tunnel Junctions has been proposed. The current-biased SCEBs are connected in series for DC and in parallel for HF signal. A signal is concentrated to the absorber through the capacitance of tunnel junctions and additional capacitance for coupling of superconducting islands. Due to dividing power between an array of SCEBs and increasing responsivity, the noise matching is so effective that the photon NEP could be easily achieved at 300 mK with a room temperature JFET readout. The concept has been developed for matching with JFET readout for BOOMERanG balloon telescope. BOOMERanG is devoted for measuring the CMB polarization.

Paper Details

Date Published: 19 July 2008
PDF: 7 pages
Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 702018 (19 July 2008); doi: 10.1117/12.789681
Show Author Affiliations
Leonid Kuzmin, Chalmers Univ. of Technology (Sweden)


Published in SPIE Proceedings Vol. 7020:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV
William D. Duncan; Wayne S. Holland; Stafford Withington; Jonas Zmuidzinas, Editor(s)

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