公开(公告)号：US20180108373A1

公开(公告)日：2018-04-19

申请号：US15784479

申请日：2017-10-16

Applicant: Seagate Technology LLC

Inventor： Roberto Fernandez Garcia ,  Andres David Barbosa Neira ,  Michael James Hardy ,  Mark Anthony Gubbins

IPC: G11B5/48 ,  G02B6/122 ,  G11B13/08

CPC classification number: G11B5/4826 ,  G02B6/1226 ,  G02B6/1228 ,  G02B2006/12135 ,  G02B2006/12147 ,  G11B13/08 ,  G11B2005/0021

Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. An input coupler of the slider is configured to-receive light produced by a light source. A waveguide of the slider comprises a waveguide core tapering from a first portion having a first cross sectional width to a second portion having a second cross sectional width along the light propagation direction. The second cross sectional width being smaller than the first cross sectional width, and the second portion having an output end. The waveguide includes at least one cladding layer comprising a metallic material. The at least one cladding layer surrounds at least the core. The at least one cladding layer is configured to sink heat away from the waveguide core. The waveguide is configured to provide a surface plasmon-enhanced near-field radiation pattern proximate the output end in response to the light received at the transducer region.

公开(公告)号：US09799359B1

公开(公告)日：2017-10-24

申请号：US15464910

申请日：2017-03-21

Applicant: Seagate Technology LLC

Inventor： Scott Eugene Olson ,  Karim Tatah ,  Yi-Kuei Ryan Wu ,  Mark Anthony Gubbins ,  Marcus B. Mooney ,  Michael James Hardy

IPC: G11B7/135 ,  G11B5/48 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B5/314 ,  G11B5/105 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A recording head includes a layer of plasmonic metal deposited on a surface of the recording head. One or more non-self-supporting layers of crystalline material are attached to the plasmonic metal, the one or more layers of crystalline materials configured to form an active region of a laser. A waveguide is configured to receive plasmons from the laser and direct the plasmons to a recording medium.