Exploration of Yb^3+:ScBO_3- a novel laser crystal in the rare-earth ion doped orthoborate system
Exploration of Yb^3+:ScBO_3- a novel laser crystal in the rare-earth ion doped orthoborate system
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DOI：
10.1364/ome.5.001822
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发表时间：
2015-08
影响因子：
2.8
通讯作者：
Dazhi Lu;Z. Pan;Haohai Yu;Huaijin Zhang;Ji-yang Wang
中科院分区：
文献类型：
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作者：
Dazhi Lu;Z. Pan;Haohai Yu;Huaijin Zhang;Ji-yang Wang
具有硼酸盐阴离子基团和小直径阳离子的光学质量晶体的生长具有挑战性。通过补偿硼酸的挥发，采用提拉法生长了适合激光应用的光学质量的 Yb3+:ScBO3 激光晶体。对Yb3+:ScBO3的热学和光谱性质进行了实验和理论研究，包括热膨胀、热扩散率、比热、热导率以及吸收和低温发射光谱。结果表明，这种晶体表现出随着温度的升高而增加的导热性，以及大能量存储特性，这表明该晶体具有在中等功率激光器中使用的前景。据我们所知，连续波 Yb3+:ScBO3 晶体激光器首次得到展示，最大输出功率为 106 mW。所有结果都表明了一种新型有前途的激光介质，适用于低功率甚至中功率激光器。
Growth of optical-quality crystals with a borate anionic group and small-diameter cations is challenging. By compensating for the volatilization of boracic acid, an optical-quality Yb3+:ScBO3 laser crystal suitable for laser applications has been grown by the Czochralski method. The thermal and spectral properties of Yb3+:ScBO3 were experimentally and theoretically studied, including the thermal expansion, thermal diffusivity, specific heat, thermal conductivity, and the absorption and low-temperature emission spectra. The results indicate that this crystal exhibits a thermal conductivity that increases with temperature, and large energy storage properties that indicate promise for utilization in moderate power lasers. A continuous-wave Yb3+:ScBO3 crystal laser has, to the best of our knowledge, been demonstrated for the first time, with a maximum output power of 106 mW. All the results are indicative of a novel promising laser medium for applications in low and even moderate power lasers.