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Vector imaging of supercurrent flow in YBaCuO, thin films using terahertz radiation

Applied Physics Letters, ISSN: 0003-6951, Vol: 75, Issue: 21, Page: 3387-3389
1999
  • 31
    Citations
  • 0
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  • 14
    Captures
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Metrics Details

  • Citations
    31
    • Citation Indexes
      31
  • Captures
    14

Article Description

We demonstrated the vector mapping of the supercurrent flow in YBaCuO thin films using a terahertz (THz) radiation imaging system. A wire-grid polarizer was employed to detect the vector components of the THz radiation. The two THz radiation images obtained through the polarizer tilted by +45° and -45° with respect to the detector's orientation were successfully transferred into the vector image of the supercurrent distribution. The observed distributions in the current-biased and the vortex-penetrated films were qualitatively explained using Bean's critical-state model [E. H. Brandt and M. Indenbom, Phys. Rev. B 48, 12893 (1993)]. © 1999 American Institute of Physics.

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