Heat assisted magnetic recording head with a planar waveguide

Details Heat assisted magnetic recording head with a planar waveguide Heat assisted magnetic recording head with a planar waveguide

2005-09-13

2005-09-13

Chen, Tianjie (Department: 2652)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

06944112

ABSTRACT:
A heat assisted magnetic recording head having a planar waveguide for heating a recording medium proximate to where a write pole of the recording head applies a magnetic write field thereto. The planar waveguide includes at least one edge, which may have a substantially parabolic shape, that is shaped to reflect an electromagnetic wave to a focal point within the planar waveguide. The planar waveguide includes a truncated end adjacent the focal point such that the truncated end intersects the focal point.

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