1-氯-2,4-二硝基苯（CDNB）有机非线性光学晶体的生长与表征
Growth and characterization of organic nonlinear optical crystal of 1-chloro-2,4-dinitrobenzene (CDNB).
作者信息
Sethuraman K, Ramesh Babu R, Vijayan N, Gopalakrishnan R, Ramasamy P
机构信息
Department of Physics, Anna University, Chennai 600025, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Mar;66(3):707-11. doi: 10.1016/j.saa.2006.04.020. Epub 2006 May 4.
Organic nonlinear optical crystal of 1-chloro-2,4-dinitrobenzene has been successfully grown by low temperature solution growth technique. Good optical quality single crystals of size 28 mm x 11 mm x 5mm are obtained. Grown crystals were subjected to X-ray powder diffraction analysis, FT-IR, FT-Raman, proton nuclear magnetic resonance (PNMR) and etching studies. Thermal properties of the grown crystals were studied by thermo gravimetric analysis (TGA) and differential thermal analysis (DTA). UV-vis studies show the cutoff wavelength is less than 400 nm. Nonlinear optical property of the crystal was studied by Kurtz powder technique using Nd:YAG laser and the crystal exhibits second harmonic generation property.
通过低温溶液生长技术成功生长出了1-氯-2,4-二硝基苯有机非线性光学晶体。获得了尺寸为28毫米×11毫米×5毫米的光学质量良好的单晶。对生长出的晶体进行了X射线粉末衍射分析、傅里叶变换红外光谱（FT-IR）、傅里叶变换拉曼光谱（FT-Raman）、质子核磁共振（PNMR）和蚀刻研究。通过热重分析（TGA）和差示热分析（DTA）研究了生长晶体的热性能。紫外可见光谱研究表明截止波长小于400纳米。使用Nd:YAG激光通过库尔茨粉末技术研究了该晶体的非线性光学性质，该晶体表现出二次谐波产生特性。
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