Method of assessing recording characteristics of thermally assisted magnetic head
US-2015380029-A1 · Dec 31, 2015 · US
Plasmonic transducer with reduced cross section at media-reading surface
US8929698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929698-B2 |
| Application number | US-201213675776-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2012 |
| Priority date | Sep 13, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are placed along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. The metal elements have a reduced cross section portion at a media-facing surface oriented normal to the delivery axis. A dielectric material surrounds the reduced cross section portion of the plasmonic transducer at the media-facing surface, and reduces deformation of the metal elements proximate the media-facing surface at elevated temperatures.
First claim
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What is claimed is: 1. An apparatus comprising: a plasmonic transducer that includes at least two metal elements with a gap therebetween, wherein the gap is disposed along a plasmon-enhanced, near-field radiation delivery axis, and wherein the metal elements comprise a taper which results in a reduced cross section portion of the metal elements at a media-facing surface oriented normal to the delivery axis; and a dielectric material surrounding the reduced cross section portion…
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Physics · mapped topic
Physics · mapped topic
- G11B5/314Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US8929698B2 cover?
- A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are placed along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. The metal elements have a reduced cross section portion at a media-facing surface oriented normal to the …
- Who is the assignee on this patent?
- Seagate Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification G11B5/314. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).