G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/24 (2006.01) G11B 7/00 (2006.01) G11B 7/0045 (2006.01) G11B 7/005 (2006.01) G11B 7/243 (2006.01) G11B 7/085 (2006.01) G11B 7/125 (2006.01) G11B 7/135 (2006.01)
Patent
CA 2318845
This invention relates to a three-dimensional optical memory made from a fluorescent photosensitive material, and a method and device for the storage and retrieval of information on the three-dimensional optical memory. The fluorescent photosensitive material can be glass and vitroceramic, both of which exhibit both fluorescent and photosensitive properties. Both one-photon and two-photon processes can be used for writing and reading the digital information on to the three-dimensional optical memory, in conjunction with a confocal microscope. A high reading sensitivity is obtained by using fluorescence during the reading cycle.
L'invention concerne une mémoire optique tridimensionnelle en matière photosensible fluorescente ainsi qu'un procédé et un dispositif de stockage et de récupération d'informations sur la mémoire optique tridimensionnelle. La matière photosensible fluorescente peut être du verre ou de la vitrocéramique, toutes deux ayant des propriétés fluorescentes et photosensibles. On peut mettre en oeuvre des procédés monophoton et biphoton pour écrire et lire les informations numériques sur la mémoire optique tridimensionnelle à l'aide d'un microscope confocal. Un forte sensibilité à la lecture est garantie grâce à la fluorescence en cours de lecture.
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