TY  - JOUR
AU  - Floet D. W.
AU  - Gao J. R.
AU  - Klapwijk T. M.
AU  - de Korte P. A. J.
PY  - 2000
DA  - 2000//
TI  - Bias Dependence of the Thermal Time Constant in Nb Superconducting Diffusion-Cooled HEB Mixers
T2  - Appl. Phys. Lett.
JO  - Appl. Phys. Lett.
SP  - 1719
VL  - 77
AB  - We present an experimental study of the intermediate frequency bandwidth of a Nb diffusion-cooled hot-electron bolometer mixer for different bias voltages. The measurements show that the bandwidth increases with increasing voltage. Analysis of the data reveals that this effect is mainly caused by a decrease of the intrinsic thermal time of the mixer and that the effect of electrothermal feedback through the intermediate frequency circuit is small. The results are understood using a qualitative model, which takes into account the different effective diffusion constants in the normal and superconducting domains.
UR  - http://aip.scitation.org/doi/10.1063/1.1287909
UR  - https://doi.org/10.1063/1.1287909
DO  - 10.1063/1.1287909
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=971), last updated on Thu, 11 Feb 2021 11:28:11 -0600
ID  - FloetD.W._etal2000
ER  -