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Optical investigations of RE-doped YAG nanoceramics

Wiesław Stręk 1,  Dariusz Hreniak 1,  Piotr Mazur 1,  Artur Bednarkiewicz 1,  Witold Łojkowski 2,  Robert Fedyk 2

1. Polish Academy of Sciences, Institute of Low Temperature and Structure Research (INTiBS), Okólna 2, Wrocław 50-422, Poland
2. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland

Abstract

The optical properties of rare-earth (Eu3+, Tb3+, Nd3+) doped Y3Al5O12 nanoceramics characterized by different grain sizes in the range 25 – 100 nm and different concentration of rare-earth ions were investigated. The method of fabrication and structural investigations are presented. The influence of doping level on the luminescence spectra and structural properties has been observed. The emission spectra were measured as a function of excitation power. The mechanisms leading to the hot emission in Nd3+:YAG nanoceramics are discussed.

 

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Presentation: invited oral at E-MRS Fall Meeting 2005, Laser Ceramic Symposium, by Wiesław Stręk
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-05-26 09:08
Revised:   2009-06-07 00:44