Changes in optical properties of YAG:Ce single crystals due to codoping and ionizing radiation treatment

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

doi:10.1117/12.343020

24 March 1999 Changes in optical properties of YAG:Ce single crystals due to codoping and ionizing radiation treatment

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

Author Affiliations +

Proceedings Volume 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications; (1999) https://doi.org/10.1117/12.343020
Event: International Conference on Solid State Crystals '98, 1998, Zakopane, Poland

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.

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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, and Henryk Rzewuski "Changes in optical properties of YAG:Ce single crystals due to codoping and ionizing radiation treatment", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); https://doi.org/10.1117/12.343020

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