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首页> 外文期刊>Optical Materials >Effect of Bi_2O_3 on nonlinear optical properties of ZnO·Bi_2O_3·SiO_2 glasses
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Effect of Bi_2O_3 on nonlinear optical properties of ZnO·Bi_2O_3·SiO_2 glasses

机译：Bi_2O_3对ZnO·Bi_2O_3·SiO_2玻璃非线性光学性质的影响

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摘要

Zinc bismuth silicate glasses having composition 20ZnO·(80-x)Bi_2O_3·xSiO_2 (0 ≤ x ≤ 50) were prepared by melt-quench technique. The third order nonlinear optical parameters viz., nonlinear refractive index (η_2), third order nonlinear susceptibility (x~((3))) and nonlinear absorption coefficient (α_2) were measured by using Z-scan technique. The optical transmittance spectra of all the glasses have been recorded in the wavelength range 190-900 nm. The values of optical band gap (E_g) have been determined from the cutoff wavelength of these glasses. It was found that (η_2. x~((3)) decrease and E_g increases with decreasing heavy metal content in the studied glasses. Further to predict the optical limiting behavior of the samples, the limiting threshold and dynamic range have been reported. Optical limiting behavior shows that studied glasses act as potential candidate for optical limiting at 532 nm.
机译：通过熔融淬火技术制备了组成为20ZnO·（80-x）Bi_2O_3·xSiO_2（0≤x≤50）的硅酸铋锌玻璃。使用Z扫描技术测量了三阶非线性光学参数，即非线性折射率（η_2），三阶非线性磁化率（x〜（（3）））和非线性吸收系数（α_2）。在190-900nm的波长范围内记录了所有玻璃的透光光谱。由这些眼镜的截止波长确定了光学带隙（E_g）的值。研究发现，随着重金属含量的降低，（η_2。x〜（（3））减小，E_g增大，进一步预测了样品的光学极限行为，报道了极限阈值和动态范围。极限行为表明，研究的眼镜可作为532 nm光学极限的潜在候选者。

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