Open AccessAbsorption spectrum analysis and crystal-field calculation of Nd3+ doped in GdTaO4 crystal
Author(s) -
Jiayu Gao,
Qingli Zhang,
Xiaofei Wang,
Wenpeng Liu,
Sun Gui-Hua,
Sun Dun-Lu,
Shi Yin
Publication year - 2015
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.64.124209
Subject(s) - crystal (programming language) , materials science , absorption spectroscopy , stark effect , ion , doping , absorption (acoustics) , spectral line , atomic physics , laser , wavelength , analytical chemistry (journal) , molecular physics , optics , physics , optoelectronics , chemistry , chromatography , astronomy , computer science , composite material , programming language , quantum mechanics
In this paper, Nd3+-doped GdTaO4 laser crystal for scintillator with high density is successfully grown by the Czochralski method, and the absorption spectra are measured along the a, b and c directions in a wide wavelength range of 260-2000 nm. The experimental energy levels for Nd3+ are analyzed and identified. The free-ions and crystal-field parameters are fitted by the experimental energy levels with the root mean square deviation of 12.66 cm-1, and 102 Stark energy levels for Nd3+ in GdTaO4 host crystal are assigned. The fitting results of free-ions and crystal-field parameters are compared with those already reported for Nd3+:GdxLu1-xTaO4 (x=0.85) crystal. It indicates that the fitting results of Stark energy levels agree well with the experimental spectra.