Patent ID: 8045422
Filing Date: 2011-10-25
Classification: B82Y,G11B

Abstract:
1. A near-field light generating element comprising: a waveguide through which a light for exciting surface plasmon propagates; and a plasmon antenna comprising: a near-field light generating end for emitting near-field light; and a propagation surface or a propagation edge for causing surface plasmon excited by the light to propagate thereon, extending to said near-field light generating end, a groove being formed in a side surface of said waveguide, and at least a portion of said propagation surface or said propagation edge being embedded in said groove or being located directly above said groove, said at least a portion being opposed to a wall surface or a bottom surface of said groove with a predetermined distance, so as for the light propagating through said waveguide to be coupled with said plasmon antenna in a surface plasmon mode.