Patent ID: 8787127
Filing Date: 2014-07-22
Classification: G11B

Abstract:
1. A near-field light generating element, comprising: a core that propagates light flux introduced to one end side thereof while focusing the light flux toward the other end side thereof; and a near-field light generating portion disposed long a propagation direction of the light flux at the other end side of the core to generate near-field light from the light flux, wherein the core includes a first core that is disposed on the surface of the near-field light generating portion and that has a bottom face coextensive with the width of the near field light generating portion when viewed from the propagation direction, and a second core that covers the first core from an opposite side of the near-field light generating portion with the first core interposed therebetween, and wherein an external end portion of the second core is situated further to the outside than an external end portion of the near-field light generating portion when viewed from the propagation direction.