材料科学
分析化学(期刊)
算法
化学
计算机科学
色谱法
作者
Ruifeng Niu,Liqi Cui,Weitian Wang
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2022-08-05
卷期号:39 (9): 2329-2329
摘要
In this study, single-phased rutile T i 1 - x I n x O 2 ( x = 0 ∼ 0.1 ) thin films were deposited on fused quartz substrates using a pulsed laser deposition technique. The transmission spectra reveal that the films show good transparency in the wavelength range of 330–900 nm. The absorption edge of the T i 1 - x I n x O 2 thin films is blueshifted compared with that of undoped T i O 2 films. A single-beam z -scan method using a pulse laser operating at 532 nm with a duration of 55 ps was employed to evaluate the films’ nonlinear optical characteristics. The results show that the prepared T i 1 - x I n x O 2 films exhibit nonlinear saturable absorption and negative nonlinear refraction properties. The doping of In ions into T i O 2 does not change the nonlinear optical absorption significantly. However, the nonlinear refractive index of T i 1 - x I n x O 2 film obviously increases with the increasing doping of In ions. The local electron-pinned defect-dipoles and widening bandgaps in the T i 1 - x I n x O 2 thin films could be used to explain the observed results.
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