Magneto-optical detection of single flux quantum signals in superconducting quantum interference device

Magneto-optical detection of single flux quantum signals in superconducting quantum interference device

The properties of an YBa2Cu3O7−d superconducting quantum interference device (SQUID) have been evaluated magneto-optically and electrically. It was found that the operating characteristics of the SQUID observed by means of the magneto-optical (MO) method show a good consistency with those measured b...

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Veröffentlicht in:Applied physics letters 2009-11, Vol.95 (19)
Hauptverfasser: Murakami, Hironaru, Kitamura, Ryohei, Kawayama, Iwao, Tonouchi, Masayoshi
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container_title Applied physics letters
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creator Murakami, Hironaru
Kitamura, Ryohei
Kawayama, Iwao
Tonouchi, Masayoshi
description The properties of an YBa2Cu3O7−d superconducting quantum interference device (SQUID) have been evaluated magneto-optically and electrically. It was found that the operating characteristics of the SQUID observed by means of the magneto-optical (MO) method show a good consistency with those measured by the electrical method. Furthermore, we have succeeded in the MO detection of local magnetic signals corresponding to the single flux quantum pulses generated in the SQUID loop applied with an external pulsed magnetic field. These results indicate that the MO probe has the potential to be applied to an optical output interface for superconducting magnetic flux devices.
doi_str_mv 10.1063/1.3262957
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title Magneto-optical detection of single flux quantum signals in superconducting quantum interference device
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