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首页> 外文期刊>Optical Materials >Growth, structure and spectroscopic properties of Er,Pr:YAP laser crystal
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Growth, structure and spectroscopic properties of Er,Pr:YAP laser crystal

机译：Er，Pr：YAP激光晶体的生长，结构和光谱性质

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摘要

Er3+ and Pr3+ co-doped YAP laser crystal with high optical quality was grown successfully by the Czochralski method for the first time. By contrast, an Er3+ single doped YAP laser crystal was also grown. The cell parameters of the two crystals were obtained by the X-ray Rietveld refinement method. The X-ray rocking curves indicate that the as-grown crystals possess excellent crystalline quality. The absorption spectra show that the crystals are suitable to be pumped by 972 nm LD. The NIR and MIR emission spectra, the up-conversion spectra and the fluorescence decay curves were also measured to investigate the influence of Pr3+ ions on the spectroscopic properties. The results indicate the Pr3+ ions acting as the deactivator can decrease efficiently the lifetime of the lower laser level I-4(13/2) of the Er3+ ions from 10.72 to 0.489 ms, which would be beneficial to decrease the laser threshold and increase the laser conversion efficiency.
机译：首次通过切克劳斯基方法成功地生长了具有高光学质量的Er3 +和Pr3 +共掺杂YAP激光晶体。相比之下，还生长了Er3 +单掺杂YAP激光晶体。通过X射线Rietveld精修方法获得了两个晶体的晶胞参数。 X射线摇摆曲线表明，所生长的晶体具有优异的晶体质量。吸收光谱表明，晶体适合被972 nm LD泵浦。还测量了NIR和MIR发射光谱，上转换光谱和荧光衰减曲线，以研究Pr3 +离子对光谱性质的影响。结果表明，用作钝化剂的Pr3 +离子可有效降低Er3 +离子的较低激光强度I-4（13/2）的寿命，从10.72毫秒降低至0.489毫秒，这将有利于降低激光阈值并提高激光强度。激光转换效率。

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