Volumetric track definition for data storage media used to record data by selective alteration of a format hologram


Ontology type: sgo:Patent     


Patent Info

DATE

2001-11-27T00:00

AUTHORS

Andrew J. Daiber , Robert R. McLeod , Tokuyuki Honda

ABSTRACT

A photoactive medium has a complex format grating written thereon, the complex format grating including at least three component gratings, each of the component gratings characterized by a unique grating vector. Methods for writing the complex format grating include the steps of providing a photoactive medium; and focussing a plurality of pairs of mutually coherent light beams into a focal plane in the medium. More... »

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