Growth and assessment of physical properties of a new nonlinear optical crystal: Lanthanum calcium borate
Growth and assessment of physical properties of a new nonlinear optical crystal: Lanthanum calcium borate
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DOI：
10.1016/j.optmat.2007.12.009
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发表时间：
2008-08
影响因子：
3.9
通讯作者：
F. Jing;P. Fu;Yicheng Wu;Y. Zu;Xian Wang
中科院分区：
文献类型：
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作者：
F. Jing;P. Fu;Yicheng Wu;Y. Zu;Xian Wang
采用助熔剂法生长了La_2CaB_（10）O_（19）（LCB）单晶。对LCB作为变频器的主要物理性能进行了评价。该晶体在紫外线（UV）到红外线范围内具有高透明度。用Maker条纹法测得d_（21）、d_（22）、d_（23）和d_（14）的四个非线性光学系数分别为0.433、0.484、0.437和0.640pm/V。测得LCB（001）面的损伤阈值为11.5GW/cm ~ 2。该晶体除了具有良好的光学性能外，还具有良好的热性能、机械性能和稳定的化学性能，便于加工和应用。这些特性为LCB作为变频器件提供了良好的应用前景。
Single crystals of La2CaB10O19(LCB) were grown by flux method. The main physical properties of using LCB as a frequency conversion device were evaluated. The crystal has a high transparency from ultraviolet (UV) to infrared range. The four nonvanished nonlinear optical coefficients measured by Maker fringes method are 0.433, 0.484, 0.437 and 0.640pm/V for d21, d22, d23and d14, respectively. The damage threshold of (001) plane of LCB was measured to be 11.5GW/cm2. Besides the good optical properties, the crystal also has good thermal and mechanical properties and stable chemical properties for processing and application. All these properties provide LCB with a good application prospect as a frequency conversion device.