Near-field light generator and thermally-assisted magnetic recording head
US11049516B1 · kind B1 · utility
3Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2020 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Oct 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A near-field light generator includes a plasmon generator including a plasmon exciting portion on which a surface plasmon is excited, and a near-field transducer including a front end face that generates near-field light from the surface plasmon. The near-field transducer is formed of a first metal material. The plasmon generator includes a first portion formed of the first metal material and a second portion formed of a second metal material. The first portion is in contact with the near-field transducer. The second portion includes at least part of the plasmon exciting portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.