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US 2006/0232869 A1Published application
Apparatus for excitation, enhancement, and confinement of surface electromagnetic waves for confined optical power delivery
AssigneeSeagate Technology LLC
InventorsAmit Itagi, Daniel Stancil, Tuviah Schlesinger, James Bain
Life of this patent
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Abstract
An apparatus for producing an optical spot on the order of 25 nm in a recording media. The apparatus includes an optical transducer comprising a waveguide which defines an aperture adjacent to an air bearing surface of the transducer adjacent a recording media. The transducer includes a protrusion extending beyond the plane of the air bearing surface extending toward the recording media.
Claims20
A transducer, comprising:
- a waveguide including a ridge and defining an aperture adjacent to a bottom surface defining a plane;
- and
- a protrusion extending from the ridge beyond the plane of the bottom surface.
A data storage system, comprising:
- a storage media;
- a positioning device for positioning a recording head adjacent to a surface of the storage media, wherein the recording head comprises:
- a write pole capable of transmitting electromagnetic radiation,
- a waveguide including a ridge and defining an aperture adjacent to an air bearing surface, and
- a protrusion extending from the ridge beyond the air bearing surface;
- and
- a source of electromagnetic waves for delivering an electromagnetic wave to the waveguide.
4 more elements
A recording head, comprising:
- a write pole capable of transmitting electromagnetic radiation;
- a waveguide positioned in the write pole and including a ridge and defining an aperture adjacent to an air bearing surface;
- and
- a protrusion extending from the ridge beyond the air bearing surface.
1 more element
Dependencies are inferred from the claim text.