Theoretical and experimental comparative study of nonlinear properties of imidazolium cation based ionic liquids

被引：13

作者：

Ferreira, Vinicius Castro ^{[1
]}

Zanchet, Leticia ^{[2
]}

Monteiro, Wesley Formentin ^{[2
]}

da Trindade, Leticia Guerreiro ^{[3
]}

de Souza, Michele Oberson ^{[2
]}

Bordalo Correia, Ricardo Rego ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Phys, OPTMA Opt Photon & Mat Grp, Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Chem, LRC Lab Reatividade & Catalise, Porto Alegre, RS, Brazil

[3] Univ Estadual Paulista, Dept Chem, Bauru, SP, Brazil

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2021年 / 328卷

关键词：

Ionic liquid; Nonlinear refractive index; Z-scan; EZ-scan; Thermo-optical properties;

D O I：

10.1016/j.molliq.2021.115391

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：

This work describes the experimental and theoretical investigation of the nonlinear optical properties of the imidazolium cation based ionic liquids and the corresponding thermo-optical parameters. The experimental results of nonlinear optical properties, such as nonlinear refractive index and thermo-optical properties are determined by Z-scan and EZ-scan techniques with a femtosecond laser source. Theoretical simulations of linear and nonlinear optical properties performed by density functional theory (DFT) are discussed in terms of polarizabilities and hyperpolarizabilities. A correlation between the theoretical and experimental results is presented, where the variation of the experimental signals of each ionic liquid can be compared with their calculated nonlinear optical properties. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：10

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