Optical properties of LiNbO3/Au/Ti under the external electric field

被引：2
作者：
Jiao, Xinbing [1 ,2 ]
Li, Shumin [1 ,2 ]
Bao, Shiyi [1 ,2 ]
机构：
[1] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516 Jungong Rd, Shanghai 200093, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2024年 / 171卷
基金：
中国国家自然科学基金;
关键词：
Z-scanning; Electric field; Polarization; Spectrum; LiNbO3; Z-SCAN;
D O I：
10.1016/j.optlastec.2023.110468
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Transmittance and polarization properties of the LiNbO3 crystal are critical parameters. Here, asymmetrical Au/ Ti grating is used to modulate the nonlinear properties of the LiNbO3 crystal under an external electric field. The transmission spectrum of the LiNbO3/Au/Ti is studied by the spectrometer. The polarization properties of the polarized laser beam are studied by the Thorlabs PAX5710IR3 polarimeter and the Z-scanning technique. The results show that the radius of the polarized laser beam changes from 786.0 mu m to 1204 mu m. The LiNbO3/Au/Ti transmittance increases from 4.92 % to 11.20 %. The transmittance of the LiNbO3/Au/Ti exhibits linearly change within a certain voltage range and at z = 0 mm position. The red shift of the wavelength of the polarized laser beam can be realized by adding an external voltage on LiNbO3/Au/Ti. The change of the Stokes parameters S1, S2, S3, and the degree of optical polarization are mainly affected by the samples' position when the external voltages change from 0 V to 10 V.
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页数：6
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