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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >The influence of oxides on the optical properties of tellurite glasses
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The influence of oxides on the optical properties of tellurite glasses

机译:氧化物对碲酸盐玻璃光学性能的影响

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摘要

New tellurite glasses within composition 75TeO(2)-5WO(3)-15Nb(2)O(5)-5M(x)O(y) in mol%, where MxOy = (Na2O, Ag2O, ZnO, MgO, CuO, NiO, TiO2, MnO2), have been prepared using the conventional melt-quenching method. The optical properties of these glasses were estimated by measuring the ultraviolet-visible-near infrared (UV-vis-NIR) spectroscopy and linear refractive indices at different wavelengths. From the absorption edge studies, the values of the optical band gap (E-opt) and Urbach energy (Delta E) were evaluated. The density, molar volumes, molar refraction (R-m), molar polarizability (alpha(m)), metallization criterion (M-c), electronic polarizability of oxide ions (alpha(O-2)), and optical basicity (Lambda) were estimated. Moreover, the nonlinear refractive index (n(2)), third-order nonlinear susceptibility (chi((3))), and nonlinear absorption coefficient (beta) were observed. It was found that the linear and nonlinear refractive indexes increase with decreasing the optical energy gap.
机译:组成为75TeO(2)-5WO(3)-15Nb(2)O(5)-5M(x)O(y)的新碲酸盐玻璃,以mol%为单位,其中MxOy =(Na2O,Ag2O,ZnO,MgO,CuO, NiO,TiO 2,MnO 2)已使用常规的熔融淬火方法制备。这些玻璃的光学特性通过测量紫外可见-近红外(UV-vis-NIR)光谱和不同波长下的线性折射率来估算。根据吸收边缘研究,评估了光学带隙(E-opt)和Urbach能量(Delta E)的值。估计了密度,摩尔体积,摩尔折射(R-m),摩尔极化率(alpha(m)),金属化标准(M-c),氧化物离子的电子极化率(alpha(O-2))和光学碱度(Lambda)。此外,观察到非线性折射率(n(2)),三阶非线性磁化率(chi((3)))和非线性吸收系数(β)。发现线性和非线性折射率随着光能隙的减小而增加。

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