Three-dimensional optical memory with fluorescent...

Details Three-dimensional optical memory with fluorescent... Three-dimensional optical memory with fluorescent...

2005-11-29

2005-11-29

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S103000, C369S100000, C369S112010

Reexamination Certificate

active

06970414

ABSTRACT:
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.

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patent: 5472759 (1995-12-01), Chen et al.
patent: 5478498 (1995-12-01), Kodama et al.
patent: 6608774 (2003-08-01), Rentzepis
“Photostimulable Luminiscence Glasses . . . ” by Hirao et al. (JP Appl. Phys. vol. 37/1998, pp 2254-2262).

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