Nonequilibrium THz conductivity of Bi2Sr2CaCu 2O 8+δ

M. A. Carnahan, R. A. Kaindl, J. Orenstein, D. S. Chemla, S. Oh, J. N. Eckstein

Research output: Contribution to journalConference articlepeer-review


Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, σ(ω)= σ1(ω)+iσ2(ω), in optimally-doped Bi2Sr2CaCu2O8+δ films directly after photoexcitation. The photoinduced change in the imaginary part Δσ2, indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate.

Original languageEnglish (US)
Pages (from-to)729-730
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue number1-4
StatePublished - Aug 2004
EventProceedings of the International Conference on Materials - Rio de Janeiro, Brazil
Duration: May 25 2003May 30 2003


  • Bi-2212
  • Superconductivity
  • THz spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics


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