Sensitivity and Noise of Cold-Electron Bolometer Arrays
Artikel i vetenskaplig tidskrift, 2017

We perform experimental and theoretical studies of the series-parallel arrays of the cold-electron bolometers integrated into a cross-slot antenna and composed with an immersion silicon lens. This work is aimed at determining the efficiency of radiation absorption by bolometers, their volt-watt sensitivity, and equivalent noise power. The absorbed power was found using two independent methods, which ensured a better reliability of the results. The first method is based on comparing the experimental current-voltage characteristics of bolometers with the model based on the heat-balance equation. The second approach involves simulation of the electromagnetic properties of the system including the antenna, the lens, the bandpass filters, and the radiation source. The discrepancy among the results obtained using various methods does not exceed 30%. Optimization of the experimental setup is proposed to reach the photon-noise detection regime.

Physics

tunnel-junctions

Engineering

Författare

Anton Mukhin

Nizhny Novgorod State Technical University

A. V. Gordeeva

Nizhny Novgorod State Technical University

L. S. Revin

Russian Academy of Sciences

Nizhny Novgorod State Technical University

Lobachevsky University

A. E. Abashin

Nizhny Novgorod State Technical University

A. A. Shishov

Nizhny Novgorod State Technical University

A. L. Pankratov

Lobachevsky University

Russian Academy of Sciences

Nizhny Novgorod State Technical University

Sumedh Mahashabde

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Leonid Kuzmin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Radiophysics and Quantum Electronics (English Translation of Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika)

0033-8443 (ISSN) 1573-9120 (eISSN)

Vol. 59 8-9 754-762

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Fysik

Signalbehandling

DOI

10.1007/s11141-017-9744-8