Optical single-bit recording and fluorescent readout...

Details Optical single-bit recording and fluorescent readout... Optical single-bit recording and fluorescent readout...

2006-07-04

2006-07-04

Edun, Muhammad (Department: 2656)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S283000, C369S047100, C369S100000

Reexamination Certificate

active

07072275

ABSTRACT:
The present invention provides methods and apparatuses for writing information to, reading information from, and erasing information on a luminescent data storage medium comprising Al2O3. The method includes writing and erasing of the information using photoionization via sequential two-photon absorption and non-destructive reading the information using fluorescent detection. The apparatuses for writing and reading the information incorporate confocal detection and spherical aberration correction for multilayer volumetric fluorescent data storage. The methods also allow multilevel recording and readout of information for increased storage capacity.

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