Effect of Molar Concentration and Solvent Type on Linear and NLO Properties of Aurintricarboxylic (ATA) Organic Dye for Image Sensor and Optical Limiter Applications
Anwar Ahmed Fadhl Abodood, Karar Abdali, Abdulazeez O. Mousa Al-Ogaili, Ehssan Al‐Bermany, Khalid Haneen Abass
Abstract
Aurintricarboxylic (ATA) organic dye is a promising chemical compound candidate for several optical and electronic applications. However, this study aims to investigate the impact of molar concentrations and solvent type on the linear/nonlinear optical (NLO) properties of 5,5[Formula: see text]-[(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene) methylene] bis (2-hydroxybenzoic acid) organic laser dyes. Three molar concentrations of organic dyes ([Formula: see text], [Formula: see text], and [Formula: see text]) M were respectively dissolved in distilled water and dimethylsulfoxide (DMSO) at room temperature. The samples were investigated using 1 H-NMR and UV/Visible spectrums. The bandgap ([Formula: see text]) of ([Formula: see text] M) ATA/water is 4.75[Formula: see text]eV, but Eg of ATA/DMSO was 2.93[Formula: see text]eV and 2.65[Formula: see text]eV. The measurements were performed by employing a diode-pumped solid-state laser operating at a 457 nm wavelength and 112[Formula: see text]mW of power. The [Formula: see text]-scan technique was applied to characterize open and close apertures, nonlinear refractive index ([Formula: see text]), and nonlinear absorption coefficient ([Formula: see text]). The obtained results predicted that both the [Formula: see text] and [Formula: see text] coefficients decreased with the reduction of molar concentrations. Additionally, DMSO exhibited better linear/NLO properties than water. The results revealed promising laser dye samples for image sensor and optical limiter applications.