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公开(公告)号:US06771567B2
公开(公告)日:2004-08-03
申请号:US09992588
申请日:2001-11-06
申请人: Jean-Pierre Nozieres , Sebastien Ferrand , Yannick Maral , Jean-Christophe Toussaint , Jørn Raastad
发明人: Jean-Pierre Nozieres , Sebastien Ferrand , Yannick Maral , Jean-Christophe Toussaint , Jørn Raastad
IPC分类号: G11B1100
CPC分类号: G11B11/10547
摘要: A magneto-optical read head for detecting magnetic transitions representing data stored in a magnetic recording medium as a sense layer having an optical property that is magnetic field-dependent, two magnetic shield layers respectively disposed on opposite sides of the sense layer and allowing magnetic flux from substantially only one of the magnetic transitions to interact with the sense layer at a time, with one of the magnetic shield layers being transparent at a wavelength allowing light at that wavelength to enter into and exit from the sense layer.
摘要翻译: 一种磁光读头,用于检测表示存储在磁记录介质中的数据的磁转换,作为具有磁场依赖性的光学特性的感测层,分别设置在感测层的相对侧上的两个磁屏蔽层,并允许磁通量 从基本上只有一个磁性跃迁到一次与感应层相互作用,其中一个磁屏蔽层在允许该波长的光进入和离开感测层的波长处是透明的。