Negative differential resistance in Josephson junctions coupled to a cavity

Niels Falsig Pedersen, G. Filatrella, V. Pierro, Mads Peter Sørensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Regions with negative differential resistance can arise in the IV curve of Josephson junctions and this phenomenon plays an essential role for applications, in particular for THz radiation emission. For the measurement of high frequency radiation from Josephson junctions, a cavity – either internal or external – is often used. A cavity may also induce a negative differential resistance region at the lower side of the resonance frequency. We investigate the dynamics of Josephson junctions with a negative differential resistance in the quasi particle tunnel current, i.e. in the McCumber curve. We find that very complicated and unexpected interactions take place. This may be useful for the interpretation of experimental measurements of THz radiation from intrinsic Josephson junctions.
Original languageEnglish
JournalPhysica C: Superconductivity and its Applications
Volume503
Pages (from-to)178-182
ISSN0921-4534
DOIs
Publication statusPublished - 2014

Keywords

  • Nonlinear oscillators
  • Superconducting devices
  • Millimeter wave devices
  • Nonlinear circuits
  • Nonlinear optics

Cite this

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title = "Negative differential resistance in Josephson junctions coupled to a cavity",
abstract = "Regions with negative differential resistance can arise in the IV curve of Josephson junctions and this phenomenon plays an essential role for applications, in particular for THz radiation emission. For the measurement of high frequency radiation from Josephson junctions, a cavity – either internal or external – is often used. A cavity may also induce a negative differential resistance region at the lower side of the resonance frequency. We investigate the dynamics of Josephson junctions with a negative differential resistance in the quasi particle tunnel current, i.e. in the McCumber curve. We find that very complicated and unexpected interactions take place. This may be useful for the interpretation of experimental measurements of THz radiation from intrinsic Josephson junctions.",
keywords = "Nonlinear oscillators, Superconducting devices, Millimeter wave devices, Nonlinear circuits, Nonlinear optics",
author = "Pedersen, {Niels Falsig} and G. Filatrella and V. Pierro and S{\o}rensen, {Mads Peter}",
year = "2014",
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language = "English",
volume = "503",
pages = "178--182",
journal = "Physica C: Superconductivity and its Applications",
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Negative differential resistance in Josephson junctions coupled to a cavity. / Pedersen, Niels Falsig; Filatrella, G.; Pierro, V.; Sørensen, Mads Peter.

In: Physica C: Superconductivity and its Applications, Vol. 503, 2014, p. 178-182.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Negative differential resistance in Josephson junctions coupled to a cavity

AU - Pedersen, Niels Falsig

AU - Filatrella, G.

AU - Pierro, V.

AU - Sørensen, Mads Peter

PY - 2014

Y1 - 2014

N2 - Regions with negative differential resistance can arise in the IV curve of Josephson junctions and this phenomenon plays an essential role for applications, in particular for THz radiation emission. For the measurement of high frequency radiation from Josephson junctions, a cavity – either internal or external – is often used. A cavity may also induce a negative differential resistance region at the lower side of the resonance frequency. We investigate the dynamics of Josephson junctions with a negative differential resistance in the quasi particle tunnel current, i.e. in the McCumber curve. We find that very complicated and unexpected interactions take place. This may be useful for the interpretation of experimental measurements of THz radiation from intrinsic Josephson junctions.

AB - Regions with negative differential resistance can arise in the IV curve of Josephson junctions and this phenomenon plays an essential role for applications, in particular for THz radiation emission. For the measurement of high frequency radiation from Josephson junctions, a cavity – either internal or external – is often used. A cavity may also induce a negative differential resistance region at the lower side of the resonance frequency. We investigate the dynamics of Josephson junctions with a negative differential resistance in the quasi particle tunnel current, i.e. in the McCumber curve. We find that very complicated and unexpected interactions take place. This may be useful for the interpretation of experimental measurements of THz radiation from intrinsic Josephson junctions.

KW - Nonlinear oscillators

KW - Superconducting devices

KW - Millimeter wave devices

KW - Nonlinear circuits

KW - Nonlinear optics

U2 - 10.1016/j.physc.2014.02.025

DO - 10.1016/j.physc.2014.02.025

M3 - Journal article

VL - 503

SP - 178

EP - 182

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

ER -