Method and apparatus for recording to and reading from a multi-layer diffractive optics memory
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United States of America Patent
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Nov 20, 2007
Grant Date -
Aug 4, 2005
app pub date -
May 2, 2002
filing date -
May 2, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention comprises an apparatus and method for recording information on a multi-layer diffractive optics memory to extend storage capacity. A composite mirror device comprises a plurality of sets of mirror elements. Each one of the mirror elements of the sets is configured to direct a reference beam to a point of the multi-layer memory at one of a plurality of angles. A plurality of planes is associated with the plurality of sets. There is one plane per set, each plane being defined for each of the sets of mirror elements so that the paths formed from the mirror elements of the set to the point lie in the plane. Each of the planes is separated from its neighbor by an angle selected to avoid crosstalk.
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