Yttrium calcium oxyborate (YCOB) crystals are excellent nonlinear optical crystals. To enhance the thermal properties of YCOB crystal, Sc-doped YCOB crystals, denoted as ScYCaO(BO) (x = 0.1 and 0.2) were grown using the Czochralski method along the -direction. Various measurements, including X-ray powder diffraction, rocking curve analysis, inductively coupled plasma-optical emission spectroscopy (ICP-OES), transmission spectroscopy, density measurements, and thermal property assessments, were conducted to evaluate the characteristics of the ScYCOB crystals. The results indicated that ScYCOB crystals have an isostructural arrangement like YCOB, with segregation coefficients of approximately 0.2. The full width at half maximum (FWHM) values of the rocking curves of the ScYCOB (x = 0.1 and 0.2) crystals are 33.9″ and 29.3″, respectively. Furthermore, the specific heat, thermal diffusion coefficients and thermal conductivity of the ScYCOB crystals were examined in the temperature range of 298–573 K, which were found to be higher than those of pure YCOB. These high-quality ScYCOB crystals are expected to serve as suitable nonlinear optical crystals media for optical parametric chirped pulse amplification (OPCPA) applications.

中文翻译：

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ScxY1-xCOB单晶的晶体生长、结构、光谱和热性质

硼酸钇钙（YCOB）晶体是优良的非线性光学晶体。为了增强 YCOB 晶体的热性能，使用直拉法沿 - 方向生长了 Sc 掺杂 YCOB 晶体，表示为 ScYCaO(BO)（x = 0.1 和 0.2）。进行了各种测量，包括 X 射线粉末衍射、摇摆曲线分析、电感耦合等离子体发射光谱 (ICP-OES)、透射光谱、密度测量和热性能评估，以评估 ScYCOB 晶体的特性。结果表明，ScYCOB晶体具有与YCOB类似的同构排列，偏析系数约为0.2。 ScYCOB（x = 0.1 和 0.2）晶体的摇摆曲线的半峰全宽 (FWHM) 值分别为 33.9" 和 29.3"。此外，在298-573 K的温度范围内检查了ScYCOB晶体的比热、热扩散系数和导热系数，发现这些值高于纯YCOB。这些高质量的 ScYCOB 晶体有望作为光学参量啁啾脉冲放大 (OPCPA) 应用的合适非线性光学晶体介质。