发明授权
US08576674B2 Plasmon generator including two portions made of different metals
有权
等离子体发生器包括由不同金属制成的两部分
- 专利标题： Plasmon generator including two portions made of different metals
- 专利标题（中）： 等离子体发生器包括由不同金属制成的两部分
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申请号： US13283064申请日： 2011-10-27
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公开(公告)号： US08576674B2公开(公告)日： 2013-11-05
- 发明人: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Kazuki Sato , Yukinori Ikegawa
- 申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Kazuki Sato , Yukinori Ikegawa
- 申请人地址： US CA Milpitas
- 专利权人： Headway Technologies, Inc.
- 当前专利权人： Headway Technologies, Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Oliff and Berridge, PLC
- 主分类号： G11B11/00
- IPC分类号： G11B11/00
摘要：
A plasmon generator configured to excite a surface plasmon based on light includes a first portion formed of a first metal material and a second portion formed of a second metal material different from the first metal material. The plasmon generator has a front end face. The front end face includes a near-field light generating part that generates near-field light based on the surface plasmon. The second portion includes an end face located in the front end face. The second metal material satisfies at least one of the following requirements: a lower ionization tendency than that of the first metal material; a lower electrical conductivity than that of the first metal material; and a higher Vickers hardness than that of the first metal material.