Optical data storage and systems utilizing plasmon lenses
US7292521B2 · kind B2 · utility
7Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Jul 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24316
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light-plasmon coupling lens including an optically transparent substrate having a light incident surface and a light-plasmon coupling surface opposite the light incident surface. The light-plasmon coupling surface including at least a set of circular concentric peaks/valleys which form a Fourier sinusoidal pattern in the radial direction of the circular concentric peaks/valleys. A conformal layer of metal is deposited on the light-plasmon coupling surface of the substrate and has aperture at the center of thereof through which plasmons are transmitted. An optical recording medium including a light-plasmon coupling lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.