Compositions and methods for storing holographic data
申请人:General Electric Company
公开号:US07901839B2
公开(公告)日:2011-03-08
The present invention provides a method for storing holographic data comprising providing a holographic storage medium comprising an optically transparent substrate including a photochemically active dye having at least two nitrone groups; and irradiating the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to convert, within a volume element of the substrate, at least some of the photochemically active dye into a photo-product, and producing within the irradiated volume element concentration variations of the photo-product corresponding to the holographic interference pattern, thereby producing a first optically readable datum corresponding to the volume element.
COMPOSITIONS AND METHODS FOR STORING HOLOGRAPHIC DATA
申请人:Erben Christoph Georg
公开号:US20090082580A1
公开(公告)日:2009-03-26
In one aspect, the present invention provides a novel thiophene-containing polynitrone compound having structure (II)
wherein R
1
is independently at each occurrence a C
1
-C
20
aliphatic radical, a C
3
-C
20
cycloaliphatic radical, or a C
2
-C
30
aromatic radical; R
2
is independently at each occurrence hydrogen, deuterium, a C
1
-C
20
aliphatic radical, a C
3
-C
20
cycloaliphatic radical, or a C
2
-C
30
aromatic radical; and “a” is an integer from 2 to 4.