Patent ID: 9190084
Filing Date: 2015-11-17
Classification: G11B,Y10T

Abstract:
1. A thermal assisted magnetic recording head, comprising: an air bearing surface (ABS) opposite to a magnetic recording medium, a core that can propagate laser light as propagating light, a plasmon generator that includes a generator front end surface facing the ABS, and a main pole that faces the ABS and emits magnetic flux to the magnetic recording medium, wherein the plasmon generator is opposite to a portion of the core and extends to the generator front end surface, is coupled with a portion of the propagating light that propagates through the core in the surface plasmon mode to generates surface plasmon, propagates the surface plasmon to the generator front end surface, and generates near-field light (NF light) at the generator front end surface to irradiate the magnetic recording medium, and the ABS comprises a protrusion that is closer to the leading side than the generator front end surface in the down track direction, and that protrudes more toward the magnetic recording medium than the generator front end surface when the thermal assisted magnetic recording head is operated.