| 专利名称 | Barium fluoroborate, nonlinear optical crystal of barium fluoroborate, preparation method and use thereof | 申请号 | US201113383797 | 专利类型 | US | 公开（公告）号 | US8545785(B2) | 公开（授权）日 | 2013.10.01 | 申请（专利权）人 | 中国科学院新疆理化技术研究所 | 发明（设计）人 | PAN SHILIE;WU HONGPING;HOU XUELING | 主分类号 | C01B35/10 | IPC主分类号 | C01B35/10;G02B26/02 | 专利有效期 | Barium fluoroborate, nonlinear optical crystal of barium fluoroborate, preparation method and use thereof 至Barium fluoroborate, nonlinear optical crystal of barium fluoroborate, preparation method and use thereof | 法律状态 | 说明书摘要 | The present invention provides a barium fluoroborate compound, a nonlinear optical crystal and the preparation method and use thereof. Both of the barium fluoroborate compound and the nonlinear optical crystal have a chemical formula of Ba4B11O20F. The crystal belongs to orthorhombic crystal system, has a space group Cmc21 with unit cell parameters of a=18.802(3) ?, b=10.7143(19) ?, c=8.6113(14) ?, V=1734.7(5) ?3. The crystal has a powder second harmonic generation efficiency of 10 times that of KDP (KH2PO4). The ultraviolet cutoff wavelength is about 170 nm. The barium fluoroborate compound is prepared by a solid-state reaction. The barium fluoroborate nonlinear optical crystal prepared by a high temperature melting liquid method has large hardness and is easy to be cut, polished and stored. This crystal can be used widely in preparing the nonlinear optical devices of the second harmonic generator, the up frequency converter, the down frequency converter or the optical parametric oscillator or the like. |
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