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Elant'ev AI, Karasik BS. Effect of high-frequency current on Nb superconductive film in resistive state. Sov J Low Temp Phys. 1989;15(7):379–83.
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Гершензон ЕМ, Гольцман ГН, Елантьев АИ, Карасик БС, Потоскуев СЭ. Разогрев электронов в резистивном состоянии сверхпроводника электромагнитным излучением значительной интенсивности. Физика низких температур. 1988;14(7):753–63.
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Khosropanah P, Merkel H, Yngvesson S, Adam A, Cherednichenko S, Kollberg E. A distributed device model for phonon-cooled HEB mixers predicting IV characteristics, gain, noise and IF bandwidth. In: Proc. 11th Int. Symp. Space Terahertz Technol. University of Michigan, Ann Arbor, MI USA; 2000. p. 474–88.
Abstract: A distributed model for phonon-cooled superconductor hot electron bolometer (HEB) mixers is given, which is based on solving the one-dimensional heat balance equation for the electron temperature profile along the superconductor strip. In this model it is assumed that the LO power is absorbed uniformly along the bridge but the DC power absorption depends on the local resistivity and is thus not uniform. The electron temperature dependence of the resistivity is assumed to be continuous and has a Fermi form. These assumptions are used in setting up the non-linear heat balance equation, which is solved numerically for the electron temperature profile along the bolometer strip. Based on this profile the resistance of the device and the IV curves are calculated. The IV curves are in excellent agreement with measurement results. Using a small signal model the conversion gain of the mixer is obtained. The expressions for Johnson noise and thermal fluctuation noise are derived. The calculated results are in close agreement with measurements, provided that one of the parameters used is adjusted.
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Kaganov ML, Lifshitz IM, Tanatarov LV. Relaxation between electrons and the crystalline lattice. Sov Phys JETP. 1957;4(2):173–8.
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Ynvesson KS, Kollberg EL. Optimum receiver noise temperature for NbN HEB mixers according to standard model. In: Proc. 10th Int. Symp. Space Terahertz Technol.; 1999. p. 566–82.
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