Patent ID: 8454848
Filing Date: 2013-06-04
Classification: G11B

Abstract:
1. A method of manufacturing a plasmon generator, the plasmon generator including a propagation part for propagating a surface plasmon that is excited based on light, the propagation part having a bottom surface, a top surface opposite to the bottom surface, a first side surface and a second side surface that are opposite to each other and connect the top and bottom surfaces to each other, and a front end face that connects the top surface, the bottom surface, the first side surface and the second side surface to each other, the front end face including a near-field light generating part that generates near-field light based on the surface plasmon, the method comprising the steps of: forming a base part that is made of a dielectric material and has a base surface and a protruding part, the protruding part protruding from the base surface and having a top surface and a first sidewall, the top surface of the protruding part being different from the base surface in level, the first sidewall connecting the top surface of the protruding part and the base surface to each other; forming a metal film after the step of forming the base part, the metal film becoming the plasmon generator and including an adhesion part adhering to the first sidewall; and forming a filler layer after the step of forming the metal film, the filler layer being made of a dielectric material and having a second sidewall disposed such that the adhesion part is interposed between the first sidewall and the second sidewall, wherein the adhesion part includes a first contact surface that is in contact with the first sidewall, and a second contact surface that is in contact with the second sidewall, the first contact surface becoming the first side surface of the propagation part, the second side surface becoming the second side surface of the propagation part.