公开(公告)号：US11443764B1

公开(公告)日：2022-09-13

申请号：US16291491

申请日：2019-03-04

Applicant: Seagate Technology LLC

Inventor： Choon How Gan ,  Mark Anthony Gubbins ,  Beverley Rutherford McConnell ,  Martin Peter McCurry ,  Michael James Hardy ,  Andres David Barbosa Neira ,  Fadi El Hallak ,  Anil Kumar Puri

IPC: G11B5/48 ,  G11B5/31 ,  G02B6/122 ,  G11B13/08 ,  G11B5/00

Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. The slider includes an input coupler configured to receive light excited by a light source. The slider includes a waveguide core tapering along a light propagation direction from a first cross-sectional width to a second cross-sectional width, the waveguide configured to provide a surface plasmon-enhanced near-field radiation pattern proximate an output end in response to the received light. One or more cladding layers surround the waveguide core. At least one strip of plasmonic material is disposed between the waveguide core and at least one of the one or more cladding layers.

公开(公告)号：US10916262B1

公开(公告)日：2021-02-09

申请号：US16725746

申请日：2019-12-23

Applicant: Seagate Technology LLC

Inventor： Muhammed Bilal Janjua ,  Martin Peter McCurry ,  Michael James Hardy ,  Mark Anthony Gubbins

IPC: G11B5/31 ,  C22C9/00 ,  G11B5/00

Abstract: A device including a near field transducer, the near field transducer including a near field transducer, the near field transducer comprising a copper (Cu) alloy of the formula Cu1−zXz, where z ranges from 0.001 to 0.9 and X is selected from aluminum (Al), cobalt (Co), chromium (Cr), erbium (Er), iron (Fe), gold (Au), hafnium (Hf), iridium (Ir), molybdenum (Mo), nickel (Ni), palladium (Pd), platinum (Pt), rhenium (Re), rhodium (Rh), ruthenium (Ru), silicon (Si), tin (Sn), tantalum (Ta), tellurium (Te), titanium (Ti), tungsten (W), yttrium (Y), zinc (Zn), zirconium (Zr), or combinations thereof.