Near field optical head and optical recording device

Details Near field optical head and optical recording device Near field optical head and optical recording device

2006-08-11

2009-12-08

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S288000

Reexamination Certificate

active

07630287

ABSTRACT:
The object of the present invention is to provide an information recording/reproduction device for implementing high-density information recording and reading using mutual interaction of a recording medium with near field light, and particularly to a near field optical head with a high optical efficiency and a manufacturing method thereof. This is achieved by enabling an energy propagation mechanism via a plasmon by forming a layer dispersed with metal particulate at a microscopic opening generating near field light, and therefore increase optical efficiency.

REFERENCES:
patent: 4465767 (1984-08-01), Oba et al.
patent: 6285652 (2001-09-01), Tsai et al.
patent: 6449221 (2002-09-01), Knight et al.
patent: 6697322 (2004-02-01), Oumi et al.

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