| 发明名称 |
Bit-wise optical data storage utilizing aluminum oxide single crystal medium |
| 摘要 |
<p>The present invention provides a method for erasing information on a luminescent data storage medium comprising A12O3. The luminescent material is a single crystal of Al2O3 comprising a first dopant of magnesium and a second dopant comprising carbon wherein the material includes at least one type of oxygen vacancy defect. The disclosure relates to writing and erasing of the information using photoionization via sequential two-photon absorption and non-destructive reading the information using one-photon absorption and confocal 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.
</p> |
| 申请公布号 |
EP2221810(A3) |
申请公布日期 |
2010.12.15 |
| 申请号 |
EP20100159037 |
申请日期 |
2003.10.06 |
| 申请人 |
LANDAUER, INC. |
发明人 |
AKSELROD, MARK;AKSELROD, ANNA;ORLOV, SERGEI |
| 分类号 |
G11B7/0055;C30B15/00;C30B29/20;G11B7/00;G11B7/0045;G11B7/005;G11B7/24;G11B7/243 |
主分类号 |
G11B7/0055 |
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