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Barium tetraborate compound and barium tetraborate non-linear optical crystal, and preparation method and use thereof
Barium tetraborate compound and barium tetraborate non-linear optical crystal, and preparation method and use thereof
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机译:四硼酸钡化合物和四硼酸钡非线性光学晶体及其制备方法和用途
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摘要
The present invention relates to a barium tetraborate compound and a barium tetraborate non-linear optical crystal, and a preparation method and use thereof, wherein the chemical formulae of the barium tetraborate compound and the non-linear optical crystal thereof are both BaB4O7, with a molecular weight of 292.58; the barium tetraborate non-linear optical crystal has a non-centrosymmetric structure, which belongs to a hexagonal system, and has a space group P65 and lattice parameters of a=6.7233(6) Å, c=18.776(4) Å, V=735.01(17) Å3, and Z=6, wherein the powder frequency-doubled effect thereof is two times that of KDP (KH2PO4), and the ultraviolet cut-off edge is lower than 170 nm. The barium tetraborate compound is synthesized by a solid-phase reaction method; the barium tetraborate non-linear optical crystal is grown by a high-temperature molten solution method; and the crystal has a moderate mechanical hardness, is easy to cut, polish and store, and is widely applicable in the non-linear optics of a double-frequency doubling generator, an upper frequency converter, a lower frequency converter or an optical parameter oscillator etc.
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机译:四硼酸钡化合物及其非线性光学晶体及其制备方法和用途本发明涉及一种四硼酸钡化合物及其非线性光学晶体的制备方法和用途,其中四硼酸钡化合物及其非线性光学晶体的化学式均为BaB 。 4 Sub> O 7 Sub>,分子量为292.58;四硼酸钡非线性光学晶体具有非中心对称结构,属于六方晶系,空间群为P6 5 Sub>,晶格参数为a = 6.7233(6)Å,c = 18.776(4)Å,V = 735.01(17)Å 3 Sup>,Z = 6,其粉末倍频效应是KDP的两倍(KH 2 Sub > PO 4 Sub>),并且紫外线截止边缘低于170 nm。四硼酸钡化合物是通过固相反应法合成的。通过高温熔融溶液法生长四硼酸钡非线性光学晶体。晶体的机械硬度适中,易于切割,抛光和存储,可广泛应用于双倍频发生器,上变频器,下变频器或光学参数振荡器的非线性光学中等等
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