Far infrared frequency response of a Josephson junction in a self‐pumped mixer

1983 ◽  
Vol 54 (12) ◽  
pp. 7078-7082 ◽  
Author(s):  
J‐C. Henaux ◽  
G. Vernet ◽  
R. Adde
Keyword(s):  
Josephson Junction ◽  
Frequency Response ◽  
Far Infrared

scholarly journals Induced Topological Superconductivity in a BiSbTeSe2-Based Josephson Junction

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 794 ◽  
Author(s):  
Bob de Ronde ◽  
Chuan Li ◽  
Yingkai Huang ◽  
Alexander Brinkman
Keyword(s):  
Radio Frequency ◽  
Josephson Junction ◽  
Frequency Response ◽  
Systematic Study ◽  
Bound States ◽  
Shapiro Step ◽  
Majorana Bound States ◽  
Irradiation Power ◽  
Radio Frequency Waves ◽  
High Irradiation

A 4 π -periodic supercurrent through a Josephson junction can be a consequence of the presence of Majorana bound states. A systematic study of the radio frequency response for several temperatures and frequencies yields a concrete protocol for examining the 4 π -periodic contribution to the supercurrent. This work also reports the observation of a 4 π -periodic contribution to the supercurrent in BiSbTeSe 2 -based Josephson junctions. As a response to irradiation by radio frequency waves, the junctions showed an absence of the first Shapiro step. At high irradiation power, a qualitative correspondence to a model including a 4 π -periodic component to the supercurrent is found.

JOSEPHSON MESOJUNCTIONS AS DETECTORS OF LOW-INTENSITY QUANTIZED COHERENT FAR-INFRARED FIELDS

2000 ◽  
Vol 14 (25n27) ◽  
pp. 3104-3109 ◽  
Author(s):  
R. MIGLIORE ◽  
A. MESSINA ◽  
A. NAPOLI
Keyword(s):  
Josephson Junction ◽  
Quantum Noise ◽  
Single Mode ◽  
Far Infrared ◽  
Shapiro Step ◽  
Low Intensity ◽  
Quantum Nature ◽  
Coherent Field ◽  
Quantized Fields

We show that the quantum nature of a mesoscopic Josephson junction may be exploited for detecting low-intensity electromagnetic quantized fields. In particular we prove that intensity and phase of single-mode quantized coherent field may be reconstructed measuring amplitude and quantum noise of the first quantum Shapiro step occurring in the I-V characteristic of the ultrasmall Josephson junction.

scholarly journals Modeling and Electrical Characterization of Josephson Junction Using Approximation in the sense of Least Squares

2019 ◽  
Vol 12 (2) ◽  
pp. 50-53
Author(s):  
Abdelkrim Mostefai
Keyword(s):  
Josephson Junction ◽  
Least Squares ◽  
Electrical Characterization ◽  
Far Infrared ◽  
Low Noise ◽  
Non Linear Circuit ◽  
Frequency Domains ◽  
Non Linear ◽  
Optical Domain

Abstract In order to be able to realize out the mixing detection or harmonic generation functions, a non-linear circuit is necessary for different existing devices and for performing these types of operation, in the submillimetric and / or far-infrared domains (10 μm ≤ λ ≤ 1 mm), the spectral margin covered by this radiation ranging from 300 GHz to 30 THz. In these frequency domains, non-linear point devices are often used, unlike the optical domain where massive devices are widely used, among them the Josephson Junction (JJ) is mainly used in the case where low noise is desired. This paper present electrical characteristic of Josephson Junction (JJ) using Approximation in the sense of Least Squares, for different value of Cj, T, Rj.

HARMONIC MIXING OF MICROWAVE AND FAR‐INFRARED LASER RADIATION USING A JOSEPHSON JUNCTION

1971 ◽  
Vol 18 (4) ◽  
pp. 162-164 ◽  
Author(s):  
D. G. McDonald ◽  
A. S. Risley ◽  
J. D. Cupp ◽  
K. M. Evenson
Keyword(s):  
Laser Radiation ◽  
Josephson Junction ◽  
Far Infrared ◽  
Infrared Laser ◽  
Far Infrared Laser ◽  
Harmonic Mixing
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