Two-dimensional near field optical memory head

Details Two-dimensional near field optical memory head Two-dimensional near field optical memory head

1997-11-10

2000-07-04

Huber, Paul W.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

G11B 700

Patent

active

060848480

ABSTRACT:
Disclosed is an optical memory head in which a vertical cavity surface emitting laser array constituted by laying out, in a matrix form, a large number of vertical cavity surface emitting laser elements each having a laser output part with an ultra fine hole as an output window for emitting evanescent light is arranged such that the layout direction of the laser element is inclined with respect to the tangential direction to rotation of an optical recording medium at a fine angle.

REFERENCES:
patent: 5808986 (1998-09-01), Jewell et al.
patent: 5886972 (1999-03-01), Jiang et al.

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