Effect of Ta2O5 on Optical Properties of Tellurium Bismuthate Glass

被引：0
作者：
Li J.-H. [1 ]
Yu J. [1 ]
Hu M.-F. [1 ]
Zeng H.-D. [1 ]
Liu X.-F. [2 ]
机构：
[1] School of Materials Science and Engineering, East China University of Science and Technology, Shanghai
[2] School of Materials Science and Engineering, Zhejiang University, Hangzhou
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Nonlinear optics; Tantalum oxide; Tellurite glass;
D O I：
10.37188/CJL.20210382
中图分类号：
学科分类号：
摘要：
By using differential scanning calorimetry(DSC) method, this research indicates glass transition temperture(Tg) of a series of (90-x)TeO2-10Bi2O3-xTa2O5(x=0%, 2%, 4%, 6%, 8%)(TBT) glass is increased with more Ta2O5 added. The phenomenon of increasing Tg is mainly contributed to transformation of [TeO3] and [TeO3+1] to [TeO4] units. And the structure changes result in highly dense glass network structure which is supported by Raman spectroscopy and XPS charactreizations. Based on results of absorption spectrum and optical band gap equation calculation, when Ta2O5 increases from 0 to 8%, the optical band gap and Urbach energy of such glass samples show decresing trends. The third-order nonlinear optical properties of TBT glass demonstrate positive correlation with concentration of Ta2O5 through Z-scan measurement. The TBT glass with 8% Ta2O5 has 3.30×10-20 m2•V-2(2.36×10-12 esu) of third-order nonlinear susceptibility. Thus, the outstanding properties of TBT glasses pave a way of nonlinear optical applications. © 2022, Science Press. All right reserved.
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页码：371 / 380
页数：9
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