Linear and non-linear characteristics of tellurite glasses within TeO2-Bi2O3-TiO2 ternary system
Linear and non-linear characteristics of tellurite glasses within TeO2-Bi2O3-TiO2 ternary system
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TeO2-Bi2O3-TiO2 三元系亚碲酸盐玻璃的线性和非线性特性
DOI：
10.1016/j.optmat.2010.01.003
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发表时间：
2010-07-01
影响因子：
3.9
通讯作者：
Wang, Xunsi
中科院分区：
文献类型：
--
作者：
Chen, Feifei;Xu, Tiefeng;Wang, Xunsi
采用飞秒Z扫描测量技术，研究了TeO 2-Bi 2 O3-TiO 2三元系统玻璃在800 nm波长处的三阶非线性。研究了用线性折射率n（0）表示的线性光学与光学带隙E-opg之间的关系。结果表明，非线性指数γ随着n（0）的增加而增加，γ的最大值为5.108 x 10（-18）m（2）/W。当E-opg接近3.1eV时，非线性吸收（双光子吸收）共振增强，即双光子过程。(C)2010 Elsevier B. V.保留所有权利。
Using femto-second Z-scan measurements, third-order nonlinearities of glasses in TeO2-Bi2O3-TiO2 ternary system were investigated at 800 nm. Their relationships between linear optics represented by linear refractive indexes n(0) and optical band gap E-opg were studied. Results show that non-linear index gamma increases with increasing n(0), the largest value of gamma is 5.108 x 10(-18) m(2)/W. Non-linear absorption which recognized as two-photon absorption was resonantly enhanced when E-opg approached 3.1 eV, namely two-photon process. (C) 2010 Elsevier B.V. All rights reserved.