A near-field light-emitting element includes a transparent medium having a plane of incidence into which a laser beam enters, and a light-condensing plane on which the laser beam having entered the plane of incidence is concentrated, and a metal body provided on the light-condensing plane of the transparent...http://www.google.fr/patents/US7544922?utm_source=gb-gplus-shareBrevet US7544922 - Near-field light-emitting element and optical head
Near-field light-emitting element and optical head
