Near-field light device, recording apparatus using the same, and recording method

摘要

A recording apparatus records information onto a recording medium. The recording apparatus is provided with: a near-field light device; and a control unit for controlling the near-field light device. The near-field light device is provided with: a light source; a quantum dot structure which is laminated on the light source; a plurality of quantity dots which are included in the quantity dot structure and each of which generates near-field light on the basis of light emitted from the light source; and an output end which is configured to output at least one portion of energy of the near-field light to the exterior of the quantity dot structure. The control unit of the recording apparatus controls the light source to emit the light upon recording the information, thereby increasing temperature of a region of the recording medium based on a size of the output end.

主权项

1. A near-field light device, comprising:
a quantum dot structure; and a single metal-tip on the quantum dot structure, wherein the quantum dot structure is configured such that energy of incident light, which is light that enters the quantum dot structure and which is converted to near-field light by quantum dots in the quantum dot structure, concentrates on the single metal-tip.