| 摘要 |
<p>A light scatterer (313) is disposed between an end portion of a core (311) of an optical waveguide and an end portion of a main magnetic pole (310), and the surface, which at least the optical axis crosses, of the end portion of the core (311) is covered with a light-blocking film. The side surface of the end portion of the core (311) and the light scatterer are brought into contact with each other.</p> |
