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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Spectroscopic properties of Nd3+ doped transparent oxyfluoride glass ceramics
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Spectroscopic properties of Nd3+ doped transparent oxyfluoride glass ceramics

机译：Nd3 +掺杂的透明氟氧化物玻璃陶瓷的光谱性质

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摘要

In this paper, the spectroscopic properties of Nd3+ doped transparent oxyfluoride glass ceramics containing LaF3 nano-crystals were systematically studied. The formation and distribution of LaF3 nano-crystals in the glass matrix were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Based on Judd-Ofelt theory, the intensity parameters ohm(t) (t = 2, 4, 6), spontaneous emission probability, radiative lifetime, radiative quantum efficiency, width of the emission line and stimulated emission cross-section of Nd3+, were evaluated. Particularly, the effect of Nd3+ doping level on them was discussed. With the increase of Nd3+ concentration in the glass ceramic, the experimental luminescence lifetime, radiative quantum efficiency and stimulated emission cross-section vary from 353.4 mu s, 78.3% and 1.86 x 10(-20) cm(2) to 214.7 mu s, 39.9% and 1.52 x 10-20 cm(2), respectively. The comparative study of Nd3+ spectroscopic parameters in different hosts suggests that the investigated glass ceramic system is potentially applicable as laser materials for 1.06 mu m emission. (c) 2006 Elsevier B.V. All rights reserved.
机译：本文系统地研究了含LaF3纳米晶的Nd3 +掺杂透明氟氧化物玻璃陶瓷的光谱性质。通过X射线衍射（XRD）和透射电子显微镜（TEM）研究了LaF3纳米晶体在玻璃基质中的形成和分布。根据Judd-Ofelt理论，强度参数ohm（t）（t = 2、4、6），自发发射概率，辐射寿命，辐射量子效率，发射线宽度和Nd3 +的受激发射横截面分别为评估。特别地，讨论了Nd 3+掺杂水平对其的影响。随着玻璃陶瓷中Nd3 +浓度的增加，实验发光寿命，辐射量子效率和受激发射截面从353.4μs，78.3％和1.86 x 10（-20）cm（2）到214.7μs不等， 39.9％和1.52 x 10-20 cm（2）。对不同宿主中Nd3 +光谱参数的比较研究表明，所研究的玻璃陶瓷系统有可能用作1.06微米发射的激光材料。 （c）2006 Elsevier B.V.保留所有权利。

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