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QIGUO SHENG1, HAIPING XIA1,* , QINGYANG TANG1, SHINAN HE1, BAOJIU CHEN2
The high quality Na 5 Lu 9 F 32 single crystals with different Nd 3+ concentrations ranging from 0.5 to 4 mol% were grown successfully by an improved Bri dgman method. The Judd Ofelt intensity parameters Ω t (t=2, 4, 6) were calculated based on the measured absorption spectra. The stimulated emission cross section ( σ em from 4 F 3/2 to 4 I 11/2 transition (1.06 μm) for 1.0 mol% Nd 3+ doped Na 5 Lu 9 F 32 single crystal is calculated to be 4.58×10 20 cm 2 . The fluoresc ence spectra and decay curves at 1.06 μm were measured under the excitation of 808 nm LD to study the luminescent properties of the crystals. The 1.06 μm emission intensity gradually increases to the maximum value when the Nd 3+ concentration increases to a round 1.0 mol%. Nevertheless, it decreases fleetly with the Nd 3+ concentration further increases from 2.0 mol% to 4.0mol%. The 1.06 μm fluorescence lifetime of Nd 3+3+: 4 F 3/2 4 I 11/2 level decreases with the increase of Nd 3+ doping concentration. The concentra tion quenching effect of Nd 3+ ions are mainly in charge of the variety of the 1.06 μm emission..
Nd3+ ion , Na5Lu9F32 single crysta , Optical spectra 1.06 μm.
QIGUO SHENG, HAIPING XIA, QINGYANG TANG, SHINAN HE, BAOJIU CHEN, Optimizational 1.06 μm spectroscopic properties of Na5Lu9F32 single crystals doped with Nd 3+ ions, Optoelectronics and Advanced Materials - Rapid Communications, 12, 3-4, March-April 2018, pp.205-210 (2018).
Submitted at: June 29, 2017
Accepted at: April 5, 2018
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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