Open AccessAbsorption spectra and crystal-field modeling of Er3+ doped in Y3Sc2Ga3O12 crystal
Author(s) -
Jinyun Gao,
Sun Dun-Lu,
Jianqiao Luo,
Xiuli Li,
Wenpeng Liu,
Qingli Zhang,
Shaotang Yin
Publication year - 2014
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.144205
Subject(s) - crystal (programming language) , materials science , stark effect , spectral line , absorption spectroscopy , absorption (acoustics) , doping , ion , laser , wavelength , field (mathematics) , analytical chemistry (journal) , optics , atomic physics , optoelectronics , physics , chemistry , mathematics , astronomy , computer science , pure mathematics , composite material , programming language , chromatography , quantum mechanics
Er3+-doped Y3Sc2Ga3O12 (Er:YSGG) single crystal is grown by Czochralski method successfully, and the absorption spectra are measured in a wider spectral wavelength range (340-1700 nm). The experimental energy levels are analyzed and identified. The free-ion and crystal-field parameters are fitted by the experimental energy levels with a root mean square deviation of 10.34 cm-1, and 102 Stark energy levels of Er3+ in YSGG host crystals are assigned. It indicates that the fitting results of Stark energy levels are more satisfactory with the experimental spectra. Finally, the fitting results of free-ion and crystal-field parameters are compared with those already reported of Er:YAG crystal. A conclusion is drawn that the Er:YSGG has higher laser efficiency than Er:YAG, which may result from Er:YSGG that has a strong crystal field interaction.
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