Concentration effect on optical properties and optical limiting of PVA doped with nigrosin films

被引：31

作者：

Khalaf, Sana K. ^{[1
]}

Hassan, Qusay M. A. ^{[1
]}

Emshary, C. A. ^{[1
]}

Sultan, H. A. ^{[1
]}

机构：

[1] Univ Basrah, Coll Educ Pure Sci, Dept Phys, Basrah 61001, Iraq

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2022年 / 427卷

关键词：

Optical materials; Surface morphology; Optical constants; Optical linear and nonlinear properties; Z-scan; REDUCED GRAPHENE OXIDE; THIN-FILMS; ELECTRICAL-CONDUCTIVITY; CONTINUOUS-WAVE; BARIUM BORATE; Z-SCAN; BEHAVIOR; NONLINEARITY; PARAMETERS; CONSTANTS;

D O I：

10.1016/j.jphotochem.2022.113809

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polyvinyl alcohol doped nigrosin films are fabricated on glass substrates with four concentrations. The surface images and optical transmission and absorption spectra of the four films are investigated via microscope and softwares. The linear and nonlinear susceptibilities of the four films are determined. The open aperture and closed aperture Z-scan measurements are adopted to measure the optical nonlinearities viz., the nonlinear index of refraction (NIR) and the nonlinear coefficient of absorption (NCA), where as high as 10(-8) cm(2)/W and 10(-3) cm/W of both are determined respectively with 532 nm continuous wave (CW) laser beam. The optical limiting property of the four films at 532 nm are tested where it is proved that nigrosin doped PVA films are potential candidates for the use as optical limiters.

引用

页数：11

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