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Proceedings Paper

Andreev-reflection-based normal-metal hot electron bolometer for space applications
Author(s): Alexander N. Vystavkin; Denis Chouvaev; Leonid S. Kuzmin; M. Tarasov; E. Aderstedt; Magnus Willander; Tord Claeson
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Paper Abstract

We present the results of experimental development of an ultrasensitive normal metal hot-electron microbolometer with Andreev mirrors and electronic cooling by superconductor- insulator-normal metal (SIN) tunnel junctions. A value NEP equals 5 (DOT) 10-18 W/Hz1/2 for the temperature fluctuations component of noise and the thermal time constant (tau) equals 0.2 microseconds at 300 mK have been estimated for one of the realized devices with thermal conductance G approximately equals 6 (DOT) 10-12 W/K. At 100 mK, the thermal conductance was decreased to G approximately equals 7 (DOT) 10-14 W/K, that gives NEP equals 2 (DOT) 10-19 W/Hz1/2 for the temperature noise component and a thermal time constant (tau) equals 5 microseconds. Such microbolometer is intended as a detector of millimeter and submillimeter wave radiation for space applications.

Paper Details

Date Published: 13 November 1998
PDF: 8 pages
Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); doi: 10.1117/12.331197
Show Author Affiliations
Alexander N. Vystavkin, Institute of Radio Engineering and Electronics (Russia)
Denis Chouvaev, Chalmers Univ. of Technology (Sweden)
Leonid S. Kuzmin, Chalmers Univ. of Technology (Sweden)
M. Tarasov, Institute of Radio Engineering and Electronics (Sweden)
E. Aderstedt, Chalmers Univ. of Technology (Sweden)
Magnus Willander, Chalmers Univ. of Technology (Sweden)
Tord Claeson, Chalmers Univ. of Technology (Sweden)

Published in SPIE Proceedings Vol. 3465:
Millimeter and Submillimeter Waves IV
Mohammed N. Afsar, Editor(s)

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