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Backscattered terahertz radiation imaging system to visualize supercurrent distributions

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5 Author(s)
Kiwa, T. ; Res. Center for Supercond. Photonics, Osaka Univ., Japan ; Kamata, Y. ; Misra, M. ; Murakami, H.
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A new type of terahertz (THz) radiation imaging has been proposed and demonstrated. The supercurrent distributions were visualized by detecting the backscattered THz radiation from optically excited high-temperature superconductors. The supercurrent distributions were clearly observed in 100and 500-nm-thick YBa2Cu3O7-δ films in the remanent state. Our system has performance similar to the system with transmission configuration.

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Applied Superconductivity, IEEE Transactions on  (Volume:13 ,  Issue: 2 )