1999•IEEE Transactions on Applied SuperconductivityRequires access

A hot-spot mixer model for phonon-cooled NbN hot electron bolometric mixers

H. Merkel, P. Khosropanah, Pavel A. Yagoubov, E. Kollberg

Abstract

Based on a one dimensional heat transport equation for the electrons in a super-conducting hot electron bolometer (HEB) a model for a hot spot mixer is see up. The hot spot parameters are applied in a small signal oscillator model predicting IV curves and conversion gain. Besides its normal resistance and its IF bandwidth a HEB around its optimal operating point is sufficiently characterized by its hot spot length as a function of heating power. All mixer properties can be derived from this parameter set.

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Key concepts: Bolometer, Hot spot (computer programming), Hot electron, Electron, Physics, Operating point, Materials science, Optoelectronics