Patent ID: 8000178
Filing Date: 2011-08-16
Classification: B82Y,G02B,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) an edge having a coupling portion for coupling with the light in a surface plasmon mode, the coupling portion being opposed to a portion of a side surface of said waveguide with a predetermined spacing, and (b) a near-field light generating end surface located close to an end surface of a main magnetic pole, said near-field light generating end surface configured to emit near-field light outside the element, said edge being provided for propagating surface plasmon excited by the light, and extending from the coupling portion to said near-field light generating end surface that emits near-field light by receiving the propagated surface plasmon.