Hyperbolic metamaterial-based near-field transducer for heat assisted magnetic recording head
US10026421B1 · kind B1 · utility
9Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2017 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Feb 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a slider configured for heat-assisted magnetic recording. A near-field transducer comprising a peg is situated at or near an air bearing surface of the slider, and an optical waveguide of the slider is configured to couple light from a light source to the near-field transducer. The peg comprises a hyperbolic metamaterial, and the near-field transducer may further include an enlarged portion from which the peg extends, where the enlarged portion may also comprise a hyperbolic metamaterial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.