Na_2O-B_2O_3-SiO_2玻璃的制备及其三阶非线性的研究  

Preparation and the third-order optical nonlinearities of the sodium borosilicate glasses

作　　者：向卫东[1] 罗洪艳[1] 赵秀丽[1] 陈兆平[1] 梁晓娟[1] 赵海军[1] 

机构地区：[1]温州大学化学与材料工程学院,浙江温州325035

出　　处：《功能材料》2013年第16期2329-2332,2337,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50972107;51272059);浙江省科技创新团队资助项目(2009R50010)

摘　　要：以正硅酸乙酯、硼酸和乙醇钠为先驱体,分别以无水乙醇、乙二醇甲醚和无水乙醇为溶剂,采用溶胶-凝胶结合气氛控制的方法制备了Na2O-B2O3-SiO2玻璃。通过热重-差热分析、红外光谱、X射线粉末衍射等手段对凝胶的热分解机制、玻璃的形成过程和物相结构进行了表征。结果表明,在600℃时制得了透亮密实的玻璃。采用紫外-可见吸收光谱和Z-扫描技术对获得的玻璃的光学特性进行了研究,结果表明该玻璃具有良好的光透过率,且其三阶非线性极化率为1.49×10-19 m2/V2。The transparent bulk sodium borosilicate glasses were prepared by using tetraethyl orthosilicate, bo- ric acid, ethanol sodium as precursor, and anhydrous alcohol, glycolic methyl ether and anhydrous alcohol as solvent by both sol-gel and atmosphere control methods. The mechanism thermal decomposition, the formation process of the glasses and the phase structure of the glass were investigated by thermogravimetry-differential thermal analysis （TG-DTA）, Fourier transform infrared （FT-IR） and X-ray powder diffraction （XRD）, the re- sult revealed that the transparent and density sodium borosilicate glasses were obtained. Furthermore, Ultravi- olet visible absorption and Z-scan technique were employed to measure the optical properties of the glass. The results indicated that the glass has the excellent optical transmittance, and the third-order nonlinear susceptibil- ity X^（3） of the glass was determined to be 1.49×10^-19m^3/V^2.

关 键 词：Na2O-B2O3-SiO2 玻璃 溶胶-凝胶法 三阶光学非线性 Z-扫描 

分 类 号：TQ171[化学工程—玻璃工业]