Crystal growth and characterization of semiorganic nonlinear optical material: sodium p-nitrophenolate dihydrate
Crystal growth and characterization of semiorganic nonlinear optical material: sodium p-nitrophenolate dihydrate
复制标题
半有机非线性光学材料对硝基苯酚钠二水合物的晶体生长和表征
DOI：
10.1039/a705138g
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发表时间：
1998
影响因子：
--
通讯作者：
H. Bhat
中科院分区：
文献类型：
--
作者：
S. Brahadeeswaran;V. Venkataramanan;J. Sherwood;H. Bhat
对硝基苯酚钠二水合物（NPNa）是一种新型半有机非线性光学晶体。它的DEFF约为磷酸氧钛钾的1.2倍。通过等温溶剂蒸发从水和甲醇溶液中生长出大的 NPNa 单晶。对生长晶体的形态进行索引。通过化学蚀刻和同步加速器形貌评估甲醇生长晶体的缺陷含量。对大型未切割晶体进行的截面形貌显示，远离晶种的缺陷密度显着降低。通过纯化起始材料，提高了 NPNa 晶体的光学传输率。通过维氏压痕和努氏压痕评估 NPNa 晶体在 010 平面的机械硬度。
Sodiump-nitrophenolate dihydrate (NPNa) is a new semiorganic nonlinear optical crystal. It has a deff of about 1.2 times that of potassium titanyl phosphate. Large single crystals of NPNa were grown from water and methanol solutions by isothermal solvent evaporation. The morphology of the grown crystals was indexed. The defect content of the methanol grown crystals was evaluated by chemical etching and synchrotron topography. The section topography carried out on a large uncut crystal revealed a considerable reduction in the defect density away from the seed. The improved optical transmission of NPNa crystals was achieved by purifying the starting materials. The mechanical hardness of the NPNa crystals in the 010 plane was evaluated by Vickers and Knoop indentations.