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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO 3 in the 300–3000 nm Wavelength Range
Author(s) -
Dai Li,
Wang Yuning,
Chen Ruirun,
Yang Shunxiang,
Han Xianbo,
Liu Chunrui,
Shao Yu
Publication year - 2020
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201900176
Subject(s) - dopant , ion , analytical chemistry (journal) , materials science , doping , absorption (acoustics) , absorption spectroscopy , spectroscopy , inductively coupled plasma , chemistry , optics , optoelectronics , plasma , physics , organic chemistry , chromatography , quantum mechanics , composite material
A series of Sc:Yb:Tm:LiNbO 3 crystals with variable Sc 3+ (0, 1, 2, and 3 mol%) concentration are grown by the Czochralski method. The effective distribution coefficients of Sc 3+ , Yb 3+ , and Tm 3+ ions in the Sc:Yb:Tm:LiNbO 3 crystals are determined by inductively coupled plasma atomic emission spectrometer. Sc 3+ ions distribute uniformly in crystals when Sc 3+ concentration reaches up to 3 mol%. The influence of Sc 3+ concentration on the dopant occupancy and defect structure of Sc:Yb:Tm:LiNbO 3 crystals is investigated by IR transmission spectra. Threshold concentration of Sc 3+ ions in Sc:Yb:Tm:LiNbO 3 crystals is nearly 3 mol%. By analyzing UV–vis–NIR absorption spectra, absorption property of Sc:Yb:Tm:LiNbO 3 crystals is improved by doping Sc 3+ ions. Additionally, the Sc:Yb:Tm:LiNbO 3 crystals can be pumped by commercially available high power AlGaAs LDs.