Time-domain terahertz spectroscopy of Bi2Sr2CaCu2O8+δ thin film

Hironaru Murakami, Toshihiko Kiwa, Masayoshi Tonouchil, Tetsuji Uchiyama, Ienari Iguchi, Zhen Wang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Time-domain terahertz (THz) spectroscopy was carried out on a c-axis oriented Bi2Sr2CaCu2O8+δ (BSCCO) thin film. We extracted various optical parameters at frequencies from 0.3 to 1.0 THz and temperatures from 5 to room temperature by numerically solving the observed complex transmittance without Kramers-Kronig analysis. As a result, the frequency dependence of surface resistance RS showed different power laws of RS∝f (f<0.5 THz) and RS∝f1/2 (0.5 THz <f) in the superconducting state. Below the characteristic frequency, fC≃0.5 THz, rapid increase in the density of supercarrier, NS, was obtained. These obtained results well explained the electromagnetic-wave radiation property which had been observed on the same BSCCO thin film.

Original languageEnglish
Pages (from-to)322-326
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume367
Issue number1-4
DOIs
Publication statusPublished - Feb 15 2002
Externally publishedYes

Keywords

  • High-T superconductor
  • Surface resistance
  • Terahertz spectroscopy

ASJC Scopus subject areas

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

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