Optical data storage system with wavelength selective laminate

Details Optical data storage system with wavelength selective laminate Optical data storage system with wavelength selective laminate

1988-05-19

1990-10-09

Richardson, Robert L.

Static information storage and retrieval

Radiant energy

Color centers

365106, G11C 1304

Patent

active

049624792

ABSTRACT:
The storage medium for an optical data storage system is a contiguous laminate formed by a plurality of layers of photochemical hole burning material, such layers individually exhibiting inhomogeneous absorption spectrum characteristics spanning different, successive wavelength ranges. This arrangement greatly expands the cumulative or overall absorption band of the storage medium available for laser hole burning to implement data bit writing, and thus increases the storage density at each memory site.

REFERENCES:
patent: 3896420 (1975-07-01), Szabo
patent: 4101976 (1978-07-01), Castro et al.
patent: 4158890 (1979-06-01), Burland
patent: 4459682 (1984-07-01), Mossberg

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