Optical response of superconducting YBa2Cu3O7 thin films and grain-boundaries

S. Bhattacharya, M. Rajeswari, X. X. Xi, Qi Li, T. Venkatesan

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We have investigated the optical response of single grain-boundary weak-links in superconducting YBCO thin films. At the superconducting transition of a film containing a single grain-boundary weak-link we observe an enhanced optical response from the weak-link. Below the transition temperature, we measure the bias current and the temperature dependence of the optical response of the grain-boundary in the temperature range of 15K < T < 80K. Using a Resistively-Shunted-Junction model for the grain-boundary weak-link, we find that the optical response in this temperature range can be described by radiation induced thermal modulation of the critical currents.

Original languageEnglish (US)
Pages (from-to)128-137
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - May 20 1994
EventHigh-Temperature Superconducting Detectors: Bolometric and Nonbolometric 1994 - Los Angeles, United States
Duration: Jan 23 1994Jan 29 1994

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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