| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent damaging an optical recording medium even when a projection for generating near field light is brought close to the same when using near field light for recording/reproducing on the optical recording medium. <P>SOLUTION: The flat probe 1A is provided with a transmissive substrate 2, and a translucent tapered projection 3 made of a material similar to that of the substrate 2 to project from the surface side thereof. For the projection 3, a multistage shape is formed in which an apex is changed in the middle of the projection to be large at the base side, for example, a shape in which the apex is large at the base side but small at the tip side (α∠β). Thus, the projection base side is made much larger compared with the case of a simple conical shape or truncated cone shape to increase the mechanical strength. Additionally, in the case of application to an optical pickup, light concentration on the projection base part is facilitated. <P>COPYRIGHT: (C)2004,JPO |
