Method and apparatus for isolating data storage regions in a thi

Details Method and apparatus for isolating data storage regions in a thi Method and apparatus for isolating data storage regions in a thi

1993-07-14

1995-12-19

Lerner, Martin

Optical: systems and elements

Holographic system or element

Having particular recording medium

359 22, 359 25, 369 94, 369103, G02B 532, G03H 126, G11B 700

Patent

active

054773474

ABSTRACT:
A holographic storage media for storing digital data in the form of an interference grating is provided which includes a substrate (48) over which a perforated opaque structure (50) is disposed. The opaque structure (50) has wells (52) disposed therein. In the wells, a photopolymer material (54) is disposed to form data storage regions (54). This is covered by a capping layer (56). The wells (52) are chemically and/or optically isolated from each other.

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Colburn et al, "Volume Hologram Formation in Photopolymer Materials," Applied Optics, vol. 10, No. 7, Jul. 1971, pp. 1636 to 1640.

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