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Proceedings Paper

Changes in optical properties of YAG:Ce single crystals due to codoping and ionizing radiation treatment
Author(s): Slawomir Maksymilian Kaczmarek; Andrzej J. Wojtowicz; Winicjusz Drozdowski; Czeslaw Koepke; Krzysztof Wisniewski; Jaroslaw Kisielewski; Ryszard Jablonski; Marek Grinberg; Justyna Barzowska; Benedykt Kuklinski; Georg Zimmerer; Zbigniew Moroz; Henryk Rzewuski
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Paper Abstract

Absorption, luminescence, ESR and ESA spectra and TL glow curves of YAG:Ce crystals codoped with Mg2+ ions and subjected to various treatments have been measured. The variations induced by irradiations in gamma and proton beams, and by thermal annealings under oxidation and reduction conditions point to large variations of the cerium ion valency. The ESA spectra of Mg-free and Mg-codoped crystals are clearly different with the peak value in the YAG:Ce, Mg sample higher and shifted towards the shorter wavelengths. Although the TL glow curves reveal the existence of the same major traps in both materials, their role in the overall deexcitation process is strongly modified upon Mg-codoping.

Paper Details

Date Published: 24 March 1999
PDF: 7 pages
Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.343020
Show Author Affiliations
Slawomir Maksymilian Kaczmarek, Military Univ. of Technology (Poland)
Andrzej J. Wojtowicz, Nicholas Copernicus Univ. and Boston Univ. (Poland)
Winicjusz Drozdowski, Nicholas Copernicus Univ. (Poland)
Czeslaw Koepke, Nicholas Copernicus Univ. (Poland)
Krzysztof Wisniewski, Nicholas Copernicus Univ. (Poland)
Jaroslaw Kisielewski, Institute of Electronic Materials Technology (Poland)
Ryszard Jablonski, Institute of Electronic Materials Technology (Poland)
Marek Grinberg, Univ. of Gdansk (Poland)
Justyna Barzowska, Univ. of Gdansk (Poland)
Benedykt Kuklinski, Univ. of Gdansk (Poland)
Georg Zimmerer, Univ. Hamburg (Germany)
Zbigniew Moroz, Soltan Institute for Nuclear Studies (Poland)
Henryk Rzewuski, Institute of Nuclear Chemistry and Technology (Poland)

Published in SPIE Proceedings Vol. 3724:
International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications
Andrzej Majchrowski; Jerzy Zielinski, Editor(s)

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