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

Autor: Ferreira, Vinícius Castro, Zanchet, Letícia, Monteiro, Wesley Formentin, da Trindade, Letícia Guerreiro, de Souza, Michèle Oberson, Correia, Ricardo Rego Bordalo
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
Popis: This work describes the experimental and theoretical study of the nonlinear optical properties of the imidazolium cation based ionic liquids and the corresponding thermo-optical parameters. 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 polarizability, the first and second-order of hyperpolarizability. A correlation between the theoretical and experimental results is presented, where the variation of the signals of each ionic liquid can be compared with their nonlinear optical properties.
Comment: 25 pages, 5 figures, 5 tables
Databáze: arXiv