Development of Josephson Traveling-Wave Parametric Amplifier Based on Aluminum SIS Junctions
Artikel i vetenskaplig tidskrift, 2021

Prototypes of the design of Josephson traveling-wave parametric amplifier based on aluminum superconductor–insulator–superconductor junctions in the form of direct-current SQUIDs included in central conductor of coplanar line are developed, fabricated, and investigated. Three manufacturing methods for the fabrication of such devices are tested: two of them using shadow evaporation and one using magnetron sputtering and direct electron-beam lithography. Current–voltage characteristics of the junctions are measured at 0.3 K. A cryogenic setup for the measurement of spectral characteristics of such amplifier containing cold semiconductor amplifier with circulator and cooled attenuators of the channels of input signal and pump is developed. The absorption spectrum of coplanar directional coupler with a quarter-wave resonator dedicated for measurements of short chains from one to 27 SQUIDs is measured.

superconductor tunnel junctions


magnetron sputtering

Josephson traveling-wave parametric amplifiers

SIS junctions


Mikhail Tarasov

National Research University of Electronic Technology (MIET)

A. A. Gunbina

Russian Academy of Sciences

S. Lemzyakov

Russian Academy of Sciences

Daria V. Nagirnaya

National Research University of Electronic Technology (MIET)

M. Fominskii

National Research University of Electronic Technology (MIET)

Artem Chekushkin

National Research University of Electronic Technology (MIET)

V. P. Koshelets

National Research University of Electronic Technology (MIET)

E. Goldobin

Universität Tübingen

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Physics of the Solid State

1063-7834 (ISSN) 1090-6460 (eISSN)

Vol. 63 10 1564-1568


Acceleratorfysik och instrumentering

Atom- och molekylfysik och optik

Annan elektroteknik och elektronik



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