Optical head for near-field recording and reproducing device

Details Optical head for near-field recording and reproducing device Optical head for near-field recording and reproducing device

2011-04-26

2011-04-26

Dinh, Tan X (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S013330, C360S059000

Reexamination Certificate

active

07933169

ABSTRACT:
A near-field optical probe and optical near-field generator are provided. A problem of a probe having a scatterer in which optical near-field noises are generated at the parts other than for a point at which an intense optical near-field is generated, is solved. In one example of the probe, a surface of the parts except for a vertex of the scatterer at which the intense optical near-field is generated is etched so that an etching depth becomes not less than a penetration depth of the optical near-field. The probe facilitates control of noises when a sample is observed or recording marks are reproduced.

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