Patent ID: 7729085
Filing Date: 2010-06-01
Classification: G11B

Abstract:
1. A magnetic head, comprising: a write head portion including a magnetic write pole that is disposed in a write pole planar thin film structure that is perpendicular to an air bearing surface of the magnetic head; an optical resonant cavity being comprised of one or more planar thin film structures that are disposed in thin film planes that are parallel to said write pole planar thin film structure and located proximate said write pole, said resonant cavity having a principal axis thereof that is generally parallel to said air bearing surface, wherein the principal axis is further defined as extending through opposite sides of said resonant cavity that are farthest apart; and an optical energy transmission mechanism disposed in a location selected from: in one or more planar thin films of said head that are parallel to said one or more planar thin films that include said resonant cavity, and in said one or more planar thin films of said head that include said resonant cavity.