Numerical study for electromagnetic wave emission in thin samples of intrinsic Josephson junctions

T. Koyama, H. Matsumoto, Y. Ohta, M. Machida

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Emission of THz electromagnetic waves from thin samples of intrinsic Josephson junctions (IJJ's) is numerically studied, using the xz-model. We show that the spatial symmetry of the electromagnetic excitations corresponding to the π-cavity mode is different from that of the 2π-cavity mode in the IJJ's where the junction parameters such as the Josephson critical current are weakly inhomogeneous. In such IJJ's the emission in the [0 0 1] direction, which is forbidden in the dipole emission, appears at the π-cavity mode resonance, whereas it is not observed in the 2π-cavity mode resonance. It is also shown that the strong emission occurs when the transition between branches in the I-V characteristics takes place.

Original languageEnglish
Pages (from-to)1202-1205
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume471
Issue number21-22
DOIs
Publication statusPublished - 2011 Nov 1

Keywords

  • Intrinsic Josephson junctions
  • THz emission

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Numerical study for electromagnetic wave emission in thin samples of intrinsic Josephson junctions'. Together they form a unique fingerprint.

Cite this