Rader, Fishman & Grauer PLLC
Optical near-field generating device, optical near-field generating method and information recording and reproducing apparatus
An optical near-field generating device is provided. The optical near-field generating device includes: a light source; a light transmissive substrate; and a conductive scatterer irradiated with light from the light source to generate an optical near-field. The scatterer is formed across planes with different heights on the light transmissive substrate and includes a first area formed on a surface closest to an object to which the optical near-field is applied and a second area formed on a surface distant from the object as compared with the first area. The optical near-field is generated from the first area of the scatterer toward the object.
Sony Corporation
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Tetsu Kazuhiro
Watanabe Hongo