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Optical Engineering

Oxides doped with rare-earth ions as a memory medium for rewritable optical information recording
Author(s): Vasyliy G. Kravets
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Paper Abstract

The photoluminescent spectra of CaO and MgO oxides doped with rare-earth ions are studied. Photoluminescence stimulated by IR light at room temperature is observed for the first time. Optically stimulated luminescence in Ca(Mg)O:Eu,Sm for different concentrations of dopants after exposure to UV radiation (?=250 nm) and radiation with ?=488 nm are investigated. A physical model to explain luminescence and stimulated luminescence is proposed. Materials based on alkalineearth oxides activated by rare-earth ions are suitable for multiple rewriting of information.

Paper Details

Date Published: 1 September 1999
PDF: 8 pages
Opt. Eng. 38(9) doi: 10.1117/1.602199
Published in: Optical Engineering Volume 38, Issue 9
Show Author Affiliations
Vasyliy G. Kravets, Institute for Information Recording Problems (Ukraine)


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