Open AccessSpectra analysis of Yb: Y3Al5O12 crystals with different Yb doping concentration
Author(s) -
Xiaodan Wang,
Zhao Zhiwei,
Xinguang Xu,
Pingxin Song,
Benxue Jiang,
Jun Xu,
Peizhen Deng
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4358
Subject(s) - doping , materials science , ytterbium , fluorescence , absorption (acoustics) , analytical chemistry (journal) , absorption spectroscopy , attenuation coefficient , spectral line , optics , optoelectronics , chemistry , physics , chromatography , astronomy , composite material
YbY3Al5O12(Yb:YAG) single crystals with Yb3+ doping level of 5.4at%, 16.3at%, 27.1at%, 53.6at%, and 100at% were grown by the Czochralski method. The effects of different Yb3+ doping level on the absorption spectra and fluorescence spectra were studied. The results showed that the real absorption coefficient of the absorption peaks increases linearly with the increasing of Yb3+ doping level in Yb:YAG crystals. Absorption band oscillator strengths of YbYAG crystals were calculated with Smakula formula and the effects of different Yb3+ doping level on the oscillator strengths were also studied. The concentration quenching of fluorescence was observed when the Yb3+ doping level reached 27.1at% in Yb:YAG crystals. The shape of fluorescence spectra of Yb:YAG could be significantly influenced when the Yb3+ doping level is higher than 53.6at%.