DC and IF Bandwidth Measurements of Superconducting Diffusion-Cooled Hot Electron Bolometer Mixers based on Nb/Au Bilayer

X. Lefoul, Pavel A. Yagoubov, Merlijn Hajenius, W. J. Vreeling, W. F. M. Ganzevles, J. R. Gao, Piet A. J. de Korte, T. M. Klapwijk

Published Mar 1, 2002• 1 citation

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Abstract

Hot electron bolometer (HEB) mixers based on a superconductor-normal metal bilayer [1] are expected to improve the overall performance, in comparison with existing Nb or NbN mixers: lower mixer noise, larger intermediate frequency (IF) bandwidth, and in particular, lower LO power requirement. The bilayer takes advantage of the idea that one

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