Magnetic core plasmon antenna with recessed plasmon layer

Details Magnetic core plasmon antenna with recessed plasmon layer Magnetic core plasmon antenna with recessed plasmon layer

2010-07-16

2011-11-15

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S013130, C369S112270

Reexamination Certificate

active

08059496

ABSTRACT:
Various embodiments of a TAMR head having a magnetic core antenna (MCA) with a recessed plasmon layer are disclosed. An end of the plasmon layer is separated from the ABS by a magnetic layer that transmits the plasmon mode from the plasmon layer and transmits magnetic flux from an adjacent main pole layer. Both of the MCA and magnetic layer may have a triangular shape from an ABS view. There may be a non-magnetic separation layer between the MCA magnetic core and the main pole. Furthermore, a magnetic shield may be included with a side at the ABS, a side facing an end of a waveguide that transmits electromagnetic radiation to the MCA, and a side facing an edge of the plasmon layer. The recessed plasmon layer allows an improved overlay of the thermal heating spot on the magnetic field gradient at the magnetic medium that provides better TAMR performance.

REFERENCES:
patent: 7710686 (2010-05-01), Kim et al.
patent: 7821880 (2010-10-01), Tanaka et al.
patent: 2008/0192376 (2008-08-01), Tanaka et al.
patent: 2008/0198496 (2008-08-01), Shimazawa et al.
patent: 2010/0103553 (2010-04-01), Shimazawa et al.
patent: 2010/0128376 (2010-05-01), Tanabe et al.
patent: 2010/0315735 (2010-12-01), Zhou et al.
Co-pending US Patent HT09-003, U.S. Appl. No. 12/456,290, filed Jun. 15, 2009, “Plasmon Antenna With Magnetic Core for Thermally Assisted Magnetic Recording,” assigned to the same assignee as the present invention, 49 pages.
Co-pending US Patent HT09-066, U.S. Appl. No. 12/802,096, filed May 28, 2010, “Plasmon Shield to Shape and Reduce Optical Spot,” assigned to the same assignee as the present invention, 48 pages.

Affiliated with

Also associated with

Rating

Magnetic core plasmon antenna with recessed plasmon layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic core plasmon antenna with recessed plasmon layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic core plasmon antenna with recessed plasmon layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4288228