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Development of a prototype laser magneto-optical imaging system

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Abstract:

In order to detect the dynamic motion of local magnetic fluxes in high-TC superconductor devices, we are developing a new type of magneto-optic sensor with a high sensitivity and ultrafast response. For this purpose, we have fabricated a prototype laser magneto-optical detection system and evaluated its performance. In the setup, we prepared Bi-substituted rare earth iron garnet films as a Faraday indicator using the metal organic decomposition method. By using this prototype system, we succeeded in observing the magnetic field distribution around a YBa2Cu3O7- strip line applied with a bias current, and also succeeded in detecting the small magnetic field induced by a bias current as small as about 10┬ámA.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0953-2048/19/9/010

Publication date: September 1, 2006

iop/sust/2006/00000019/00000009/art00010
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