发明授权
- 专利标题: Thermally-assisted magnetic recording head including plasmon generator
- 专利标题(中): 热辅助磁记录头包括等离子体发生器
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申请号: US12785897申请日: 2010-05-24
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公开(公告)号: US08077558B1公开(公告)日: 2011-12-13
- 发明人: Takeshi Tsutsumi , Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Takahiko Izawa , Tsutomu Chou
- 申请人: Takeshi Tsutsumi , Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Takahiko Izawa , Tsutomu Chou
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 主分类号: G11B11/00
- IPC分类号: G11B11/00
摘要:
A plasmon generator has an outer surface including a plasmon exciting part that faces an evanescent light generating surface of a waveguide. The outer surface further includes first and second inclined surfaces that increase in distance from each other with increasing distance from the plasmon exciting part, and a front end face. The front end face has first and second portions that are connected to each other into a V-shape. The first portion includes a first side lying at an end of the first inclined surface. The second portion includes a second side lying at an end of the second inclined surface. An angle formed between a lower part of the first side and a lower part of the second side is smaller than that formed between an upper part of the first side and an upper part of the second side.