Near-field optical transducers having a tilted metallic pin
US7894308B2 · kind B2 · utility
4Cited by
22References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2006 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical transducer includes an optical element for directing an electromagnetic wave to a focal region and a metallic nano-structure having a longitudinal axis non-parallel to an electric field of the electromagnetic wave. The optical element for directing an electromagnetic wave may comprise one of a solid immersion lens, a solid immersion mirror, or a planar waveguide. The metallic nano-structure may comprise a metallic pin. The metallic nano-structure may be structured and arranged for resonant coupling of energy into a recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.