| 摘要 |
A preparation method and application of a Na3Ba2(B3O6)2F birefringent crystal, the crystal having a chemical formula of Na3Ba2(B3O6)2F, and belonging to a hexagonal crystal system, the space group being P6(3)/m, and the cell parameters comprising a=7.3490(6)Å, c=12.6340(2)Å, V=590.93(12)Å3, and Z=2; the crystal is used for an infrared/deep ultraviolet waveband, and is an aniaxial negative crystal, ne<no, the transmission range being 175-3350nm, the birefringence being 0.090(3350nm)-0.240(175nm), and the crystal being grown by employing a stoichiometric ratio melting method or a cosolvent method; the crystal prepared via the method has a short growth cycle, high crystal quality and large crystal size, is easy to grow, cut, grind, polish and store, is stable in the air, and difficult to deliquesce, and can be used for preparation of various polarization beam splitter prisms and infrared/deep ultraviolet waveband optical communication elements. |
