Spectra and Upconversion of Neodymium Tungstate Crystals
来源期刊：JOURNAL OF RARE EARTHS2001年第4期
论文作者：刘燕行 方方 臧竞存
Abstract: The neodymium tungstate single crystals Nd2(WO4)3 were grown using the Czochralski method. The energy level scheme of Nd3+ was obtained through the spectral measurement. The upconversion luminescence of the crystals at 457 and 657 nm, corresponding to the 4D5/2→4I11/2 and 2G7/2→4I9/2 transitions, respectively, excited by 808 nm of a laser diode, was observed at room temperature. The fluorescence intensity and the excitation light power have a linear relationship at 457 nm and a quadratic relationship at 657 nm.
刘燕行1，方方1，臧竞存2
(1.College of Environment and Energy Source, Beijing Polytechnic University,;
2.College of Materials Science and Engineering)
Abstract:The neodymium tungstate single crystals Nd2(WO4)3 were grown using the Czochralski method. The energy level scheme of Nd3+ was obtained through the spectral measurement. The upconversion luminescence of the crystals at 457 and 657 nm, corresponding to the 4D5/2→4I11/2 and 2G7/2→4I9/2 transitions, respectively, excited by 808 nm of a laser diode, was observed at room temperature. The fluorescence intensity and the excitation light power have a linear relationship at 457 nm and a quadratic relationship at 657 nm.
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