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Proceedings Paper

Development of THz Nb diffusion-cooled hot-electron bolometer mixers
Author(s): Jianrong Gao; Pavel A. Yagoubov; Teun M. Klapwijk; Piet A. J. de Korte; W. F.M. Ganzevles; D. Wilms Floet
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Paper Abstract

We summarize our research activities on THz Nb diffusion-cooled hot electron bolometer (HEB) mixers, carried out at Space Research Organization Netherlands (SRON) and Delft University of Technology. This paper will include our understanding on the device physics of diffusion-cooled HEB mixers, noise and IF bandwidth measurements of waveguide mixers around 0.7 THz, and in particular recent measurements of Nb quasi-optical mixers at 0.64 and 2.5 THz. The waveguide devices demonstrate a receiver noise temperature of 900 K at 0.7 THz. The quasi-optical mixers show 1200 K at 0.64 THz and 4500 K at 2.5 THz and a maximum IF bandwidth of at least 5 GHz.

Paper Details

Date Published: 17 February 2003
PDF: 12 pages
Proc. SPIE 4855, Millimeter and Submillimeter Detectors for Astronomy, (17 February 2003); doi: 10.1117/12.459713
Show Author Affiliations
Jianrong Gao, Space Research Organization Netherlands and Technische Univ. Delft (Netherlands)
Pavel A. Yagoubov, Space Research Organization Netherlands (Netherlands)
Teun M. Klapwijk, Technische Univ. Delft (Netherlands)
Piet A. J. de Korte, Space Research Organization Netherlands (Netherlands)
W. F.M. Ganzevles, Technische Univ. Delft (Netherlands)
D. Wilms Floet, Technische Univ. Delft (Netherlands)

Published in SPIE Proceedings Vol. 4855:
Millimeter and Submillimeter Detectors for Astronomy
Thomas G. Phillips; Jonas Zmuidzinas, Editor(s)

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