Nonlinear optical properties investigation of a newly synthesised Azo-(β)- diketone dye

Quah

Phys. Chem. Chem. Phys.

et al. 2022

Section: Resultsmentioning

confidence: 89%

A comprehensive study on the photophysical and non-linear optical properties of thienyl-chalcone derivatives

Quah

Phys. Chem. Chem. Phys.

et al. 2022

“…However, when the phase shift is larger than π, ring patterns are generated. Therefore, the nonlinearity origin is thermal [70][71][72]. The results shown in figure 19 represent the CA Z-scan data of the compound Z1.…”

Section: Compound Z1 Nonlinear Optical Studiesmentioning

confidence: 98%

Studies of the nonlinear optical properties of a synthesized Schiff base ligand using visible cw laser beams

Fadhil,

Hassan,

Hussein

et al. 2024

Phys. Scr.

The synthesized Schiff base ligand (compound Z1) is analyzed by IR, mass, 1HNMR, and 13CNMR spectroscopies. Computational chemical modeling is performed to examine the geometry optimization and molecular structure of compound Z1 by using the DFT/ WB97XD/6-31+G(d,p) method. The parameters HOMO-LUMO energies with nonlinear optical (NLO) properties are computed. The results indicate good agreement cor-relations of experimental and theoretical data so that compound Z1 prove to have good NLO properties. The NLO properties of the compound Z1 are examined under excitation with a 473 nm, cw, low power laser beam via two techniques viz., diffraction patterns (DPs) and the standared Z-scan techniques. The nonlinear refractive index (NLRI), n2, of compound Z1 is estimated by the two techniques were as high as n2 value of 3.03×10-11 m2/W is obtained at the maximum power input due to the DPs. Both static and dynamic all –optical switching (SAOS and DPOS) are tested using 473 nm and 532 nm cw low power laser beams.

“…The laser beam interaction with nonlinear materials leads to variety of effects in the transverse dimensions viz., self-focusing (SF) and defocusing (SDF), spatial ring formation, self-phase modulation, etc., [1][2][3][4][5][6][7][8][9][10][11]. Materials having high nonlinear optical (NLO) third-order properties and ultra-fast response time led to considerable scientific activities for their potential applications viz., optical computing, optical phase conjugation, all-optical switching (AOS), holography, spatial dark soliton transmission, optical power limiting, harmonic generation [12][13][14][15][16][17][18][19][20][21][22][23][24][25] etc.…”

Section: Introductionmentioning

confidence: 99%

A novel azo compound derived from ethyl-4-amino benzoate: synthesis, nonlinear optical properties and DFT investigations

et al. 2023

A novel azo dye compound, Ethyl (E)-4-((5-hydroxy-3,4-bis(hydroxyl methyl)-6-methyl pyridin-2-yl)diazenyl)benzoate (EAB), have been synthesized by the coupling reaction and characterized by FT-IR, 1 H-and 13 C-NMR, Mass, and UV-visible spectroscopies. The nonlinear optical (NLO) properties of the EAB compound via the finding of the nonlinear refractive index (NRI) using continuous wave (cw), low power 473 nm, TEM00 mode laser beam have been studied via the diffraction patterns (DPs) and the Z-scan. Effect of power input of the laser beam, types of beam wavefront and temporal variation of the DPs are discussed. The all-optical switching (AOS) using two laser beams is proved to occur in this compound.