Linear and nonlinear optical absorption characterization of natural laccaic acid dye

Abstract

International audience<p>We report on the optical performances of laccaic acid dye in solution at different concentrations and dye–poly(methyl methacrylate) composite thin films. The linear spectral characteristics including optical constants, i.e. refractive index (n) and extinction coefficient (k), were carried out in a comprehensive way through absorbance, fluorescence and ellipsometric studies. The nonlinear optical parameters such as nonlinear absorption coefficient β eff (or β 2), the imaginary third-order susceptibility (Im[χ (3)]) and the imaginary part of second-order hyperpolarizability (γ) of the samples were evaluated using the open-aperture Z-scan technique with a laser pulse duration of 10 ns at 532 nm wavelength. The corresponding numerical values of these parameters were of 10−10, 10−11 and 10−32 order, respectively. Two-photon absorption was revealed to be the main driving physical mechanism in the nonlinear response. This suggests that laccaic acid dye can be a potential candidate for NLO materials application.</p

In situ fluorescence of lac dye stabilized gold nanoparticles; DNA binding assay and toxicity study

“…[50][51][52] The presence of aromatic compounds can be used to prolong the appearance of peaks between 850 and 670 cm À1 , due to C-H bending vibrations. 53 Crystallographic analysis from X-ray diffraction (XRD) patterns X-ray diffraction (XRD) analysis was done to study the crystalline nature of the Au NPs. 54 For the AuNPs prepared with the above concentration of HAuCl 4 , keeping the concentration of the lac extract fixed, the relative intensity of the (1 1 1) and (2 0 0) diffraction peaks are 100% and 19%, respectively, indicating that the (1 1 1) facets were more exposed to the crystal surface of the AuNPs.…”

Linear and Nonlinear Optical Properties of Anthocyanin Dye from Red Cabbage in Different pH Solutions

“…S. Zongo and a co-worker 2015, studied optical performances for different concentrations of laccaic acid dye solution and its thin film in PMMA. They concluded the possibility of laccaic acid dye candidates for nonlinear optical applications 18 . Christian Prinzisky and a co-worker synthesize some anthraquinone imines and their interactions with TiO2, which can be investigated as an effective metal-binding sensitizer for wide-band-gap semiconductors optoelectronic applications 19 .…”

NLOphoric Azo Dyes Studied Using Z‐Scan

“…Standard approaches for example, “Electric Field Induced Second Harmonic Generation (EFISHG), Hyper‐Rayleigh scattering (HRS), [62,63] solvatochromic [56,64–66] and Z‐scan method, [52,61,67,68,69] can be used to determine NLO characteristics of molecules [70,71] . The simplicity and sensitivity of the Z‐scan method make it more versatile for measuring “ third‐order nonlinear optical susceptibility(χ 3 ), nonlinear refractive index (ɳ 2 ), optical limiting (OL) values, nonlinear absorption coefficients(β)“ [72–76] …”

“…[70,71] The simplicity and sensitivity of the Z-scan method make it more versatile for measuring " third-order nonlinear optical susceptibility(χ 3 ), nonlinear refractive index (� 2 ), optical limiting (OL) values, nonlinear absorption coefficients(β)". [72][73][74][75][76] In the present study, six azo disperse dyes, Disperse Red 343 1 a, 1 c, and 1 e include N-ethyl-N-methylethanamine, and 1 d has N-aryl as a strong donor. The dye 1 a show a conjugated system with ICT character (Figure 1).…”