Theoretical analysis of the new microwave detector based on a Josephson heterostructure

I. A. Devyatov; M. Yu. Kupriyanov

doi:10.1117/12.854393

26 February 2010 Theoretical analysis of the new microwave detector based on a Josephson heterostructure

I. A. Devyatov, M. Yu. Kupriyanov

Proceedings Volume 7521, International Conference on Micro- and Nano-Electronics 2009; 75210M (2010) https://doi.org/10.1117/12.854393
Event: International Conference on Micro- and Nano-Electronics 2009, 2009, Zvenigorod, Russian Federation

Abstract

We consider theoretically signal and noise properties of the new type of a high-sensitivity microwave detector, based on a SINIS (Superconductor-Insulator-Normal metal-Insulator-Superconductor) Josephson junction, in which the electron energy distribution function f(ε) in the nanoscale normal metal N region is nonequilibrium due to the capacitive coupling of this region with a receiving antenna. The deviation of f(ε) from the equilibrium leads to a change in the critical current I_c of the junction, i.e., in fact, to its inductance L = Φ₀/2πI_c (Φ₀ ≈ 2.07*10^-15 Wb is the magnetic flux quantum), which is the output signal of this device. Up to now there was no calculation of the noise properties of SINIS Josephson junction bolometer, taking into account non-equilibrium form of electron distribution function f(ε) in the normal metal absorber of this detector. We make this calculations and demonstrate, that noise parameter NEP of this detector is lower, than in others modern microwave detectors.

Citation Download Citation

I. A. Devyatov and M. Yu. Kupriyanov "Theoretical analysis of the new microwave detector based on a Josephson heterostructure", Proc. SPIE 7521, International Conference on Micro- and Nano-Electronics 2009, 75210M (26 February 2010); https://doi.org/10.1117/12.854393

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available