Effective surface impedance for a superconductor-semiconductor superlattice at mid-infrared frequency

Chien-Jang Wu, Y. L. Chen, Y. S. Tsai

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The effective surface impedance for a superconductor-semiconductor superlattice at mid-infrared frequency is calculated based on the transfer matrix method together with the enhanced two-fluid model for the high-temperature superconductor. We first investigate the effective surface resistance and surface reactance in the case of normal incidence. We find that there is a critical thickness for superconductor film such that a minimum loss is attained. We next study the effective surface impedance under the oblique incidence. The calculated effective surface impedance indicates that the angle-dependent feature is only seen for the single period. However, it does not rely on the number of periods when the period is greater than two and, in the meantime, the surface resistance is nearly unchanged as a function of the angle of incidence.

Original languageEnglish
Pages (from-to)1441-1453
Number of pages13
JournalJournal of Electromagnetic Waves and Applications
Volume23
Issue number11-12
DOIs
Publication statusPublished - 2009 Dec 1

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Superconducting materials
impedance
Semiconductor materials
Infrared radiation
Surface resistance
incidence
Transfer matrix method
High temperature superconductors
reactance
two fluid models
high temperature superconductors
matrix methods
Fluids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

Cite this

Effective surface impedance for a superconductor-semiconductor superlattice at mid-infrared frequency. / Wu, Chien-Jang; Chen, Y. L.; Tsai, Y. S.

In: Journal of Electromagnetic Waves and Applications, Vol. 23, No. 11-12, 01.12.2009, p. 1441-1453.

Research output: Contribution to journalArticle

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