Read-only optical recording medium with ZnO near-field...

Details Read-only optical recording medium with ZnO near-field... Read-only optical recording medium with ZnO near-field...

2006-04-11

2006-04-11

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

Storage medium structure

Specified material

C369S283000, C369S284000, C428S064400, C428S064100, C428S432000, C430S270120, C430S270130

Reexamination Certificate

active

07027386

ABSTRACT:
This invention relates to a read-only near-field optical disk using a zinc-oxide (ZnO) nano-structured thin film as the localized near-field optical interaction layer. This read-only near-field optical disk is a multi-layered body at least comprising; (a) a transparent substrate with pre-recorded pits or marks; (b) a reflection thin film; (c) a zinc-oxide (ZnO) nano-structured thin film which is capable of causing localized near-field optical interactions; (d) a first and a second protective and spacer layers formed above or below the localized near-field optical interaction layer, which are also made of transparent dielectric material. Ultrahigh density near-field optical readout can be achieved by localized near-field optical interaction between the zinc-oxide (ZnO) nano-structured thin film and the reflection layer on pre-recorded structure.

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