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Comparison of spectroscopic properties of neodymium-doped aluminium garnet (Nd:YAG) ceramics obtained by reactive sintering of Al2O3, Y2O3 and Nd2O3 and by synthesis of nanocrystalline Nd:YAG powders
Author(s): Anna Kozłowska; Magdalena Nakielska; Dariusz Podniesiński; Helena Węglarz; Anna Wajler; Zdzisław Librant; Tadeusz Łukasiewicz; Andrzej Maląg
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Paper Abstract

Ceramic materials are interesting alternative to single crystals for various optoelectronic applications including high-power lasers and phosphors. Main advantages of ceramics compared to their single crystal counterparts are lower costs of production, ability to incorporate higher dopant concentrations and possibility to manufacture larger elements. In the present work, the spectroscopic properties of ceramics obtained by two different methods are compared. First method relies on solid-state reaction of nanometric oxide powders, i.e. Al2O3, Y2O3 and Nd2O3. The oxides with addition of tetraethyl orthosilicate were sintered under vacuum and anealled. Second method is the synthesis of neodymium-doped aluminium garnet (Nd:YAG) nanocrystalline powders prepared by coprecipitation technique. The powders were calcined and vacuum-sintered in optimized process conditions. For all ceramic samples fluoresce and decay data is presented. Presented results indicate that the ceramic samples obtained by reactive sintering method have superior spectroscopic properties compared to the samples synthesized from Nd:YAG nanocrystalline powders. The optimization of manufacturing process allowed to demonstrate ceramics having the properties comparable to single crystal counterparts. Optical quality and luminescent properties make the ceramics manufactured at the Institute of Electronic Materials Technology an interesting candidate for laser applications.

Paper Details

Date Published: 23 February 2011
PDF: 6 pages
Proc. SPIE 7934, Optical Components and Materials VIII, 79341B (23 February 2011); doi: 10.1117/12.874532
Show Author Affiliations
Anna Kozłowska, Institute of Electronic Materials Technology (Poland)
Magdalena Nakielska, Institute of Electronic Materials Technology (Poland)
Dariusz Podniesiński, Institute of Electronic Materials Technology (Poland)
Military Univ. of Technology (Poland)
Helena Węglarz, Institute of Electronic Materials Technology (Poland)
Anna Wajler, Institute of Electronic Materials Technology (Poland)
Zdzisław Librant, Institute of Electronic Materials Technology (Poland)
Tadeusz Łukasiewicz, Institute of Electronic Materials Technology (Poland)
Andrzej Maląg, Institute of Electronic Materials Technology (Poland)

Published in SPIE Proceedings Vol. 7934:
Optical Components and Materials VIII
Michel J. F. Digonnet; Shibin Jiang; John W. Glesener; J. Christopher Dries, Editor(s)

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