Increased data storage in optical data storage and retrieval...

Details Increased data storage in optical data storage and retrieval... Increased data storage in optical data storage and retrieval...

2006-09-26

2006-09-26

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S053200, C369S100000

Reexamination Certificate

active

07113474

ABSTRACT:
An optical recording medium includes a crystallizing layer for enhancing the crystallization of a phase change memory layer, an energy storage layer for aiding the state transformations of a phase change memory layer, and/or a modifying element for increasing absorption and contrast at short wavelengths. An optical data storage and retrieval system containing same. Also a light-plasmon coupling lens including an optically transparent substrate having a light incident surface and a light-plasmon coupling surface opposite the light incident surface. The light-plasmon coupling surface including at least a set of circular concentric peaks/valleys which form a Fourier sinusoidal pattern in the radial direction of the circular concentric peaks/valleys. A conformal layer of metal is deposited on the light-plasmon coupling surface of the substrate and has aperture at the center of thereof through which plasmons are transmitted.

REFERENCES:
patent: 4773060 (1988-09-01), Shimada et al.
patent: 5128099 (1992-07-01), Strand et al.
patent: 5935672 (1999-08-01), Zhou et al.
patent: 6011757 (2000-01-01), Ovshinsky

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