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    • 10. 发明申请
    • FLUOROBERYLLIUM BORATE NON-LINEAR OPTICAL CRYSTALS AND THEIR GROWTH AND APPLICATIONS
    • 氟硼酸盐非线性光学晶体及其生长和应用
    • US20100142032A1
    • 2010-06-10
    • US12376559
    • 2006-09-15
    • Chuangtian ChenXiaohong WenRukang LiChengqian Zhang
    • Chuangtian ChenXiaohong WenRukang LiChengqian Zhang
    • G02F1/355G02F1/37G02F1/39H01S3/06C30B15/30
    • C30B9/12C30B15/00C30B29/12G02F1/3551
    • A beryllium borate fluoride salt nonlinear optical crystal is represented by molecule formula Mbe2BO3F2, wherein M is Rb or Cs. The crystal is grown by melt salt method, comprising the following step, mixing beryllium borate fluoride salt with flux at appropriate ratio, rising to 750-800° C., and keeping at constant temperature, then cooling to 2-10° C. higher than saturated temperature to obtain a elevated solution; putting seed crystal on seed crystal pole into the elevated solution, rotating the seed crystal pole, cooling to saturated temperature, and then cooling slowly; raising the obtained crystal above liquid level and cooling to room temperature, then obtaining the present nonlinear optical crystal. The crystal has nonlinear optical effect, broad transmittance wave, adsorption edge of ultraviolet lower to 150 nm, doesn't deliquesce, isn't soluble to diluted hydrochloric acid and nitric acid, and has good chemical resistance. The present crystal satisfies ultraviolet laser frequency-conversion requirements, can be used to make nonlinear optical device, make the second, the third, the forth, the fifth, or the sixth harmonic output device of Nd:YAG realized, and also can be used to harmonic output devices of other laser, to output tunable coherent light equal or down to 266 nm.
    • 硼酸铍氟化物盐非线性光学晶体由分子式Mbe2BO3F2表示,其中M是Rb或Cs。 通过熔盐法生长晶体,包括以下步骤:将硼酸铍硼酸盐与助熔剂以适当的比例混合,升至750-800℃,保持恒温,然后冷却至2-10℃。 比饱和温度得到升高的溶液; 将种子晶种放入晶体柱中,将晶圆旋转,冷却至饱和温度,然后缓慢冷却; 将得到的晶体升高到液面以上并冷却至室温,得到本发明的非线性光学晶体。 该晶体具有非线性光学效应,宽透光率波长,紫外线吸附边缘低至150nm,不潮解,不溶于稀盐酸和硝酸,具有良好的耐化学性。 本发明的晶体满足紫外激光变频要求,可用于制造非线性光学器件,实现Nd:YAG的第二,第三,第四,第五或第六谐波输出器件,也可以使用 到其他激光器的谐波输出装置,输出等于或低于266nm的可调谐相干光。