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为探索新型激光晶体,采用固相法合成了(3 at.%)Nd~(3+):SrY_2O_4多晶,对其结构和发光性质进行了研究.对样品的X射线衍射谱进行Rietveld精修得到了样品的晶胞参数、原子位置等.在353 nm激发下,Nd~(3+):SrY_2O_4在可见波段的最强荧光峰位于419 nm,对应Nd3+的2D15/2→4I9/2跃迁.在824 nm激发下,Nd3+的4F3/2→4I11/2跃迁的荧光谱带宽约为90 nm,最强峰为1083 nm,荧光寿命为281.7μs.宽发射光谱和长的能级寿命表明,Nd~(3+):SrY_2O_4是一种很有希望的新波长激光二极管抽运超短脉冲激光材料.
(3 at.%) Nd 3+: SrY 2 O 4 polycrystals were synthesized by solid-state reaction to study the structure and luminescent properties of the new laser crystals. The X-ray diffraction spectra of the samples were refined by Rietveld To the unit cell parameters of the sample, the atomic position, etc. The strongest fluorescence peak of Nd ~ (3 +): SrY_2O_4 in the visible band at 419 nm corresponds to the 2D15 / 2 → 4I9 / 2 transition of Nd3 + at 353 nm excitation. Under 824 nm excitation, the band width of the fluorescence spectrum of 4F3 / 2 → 4I11 / 2 transition of Nd3 + is about 90 nm, the strongest peak is 1083 nm and the fluorescence lifetime is 281.7 μs.Wide emission spectra and long lifetime show that Nd ~ (3 +): SrY2O4 is a promising new wavelength laser diode pump ultrashort pulse laser material.