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We describe the formation and characterization of a semi-organic NLO single crystal of sarcosine barium chloride (SBC) from aqueous solution by slow solvent evaporation method. FTIR analysis revealed that the known modes of vibrations of various molecular groups and were present, confirming of Barium Chloride ion. The scanning electron microscopy (SEM) images are examined and it provides the grain morphology of the sample and grain sharing of the sample. The chemical compositions of the SBC were confirmed by Energy Dispersive X-ray Analysis (EDAX).The optical property was characterized using UV–Vis-NIR spectrum, and the estimated UV lower cut off wavelength is 215 nm. The linear optical constant Energy band gap (Eg) was premeditated. The third-order nonlinear optical properties of SBC were meticulously studied by Z-scan technique. The Z-scan procedure was used to calculate the non-linear refractive index n2 and susceptibility χ(3). The saturation absorption and self-defocusing performance revealed by SBC. Photoluminescence properties of SBC crystal were additionally investigated. At diverse temperatures the Dielectric behavior and thermal analysis was carried out and reported. The mechanical strength at room temperature was carried out by Vickers micro hardness analysis. [ABSTRACT FROM AUTHOR]

Slow solvent evaporation was used to produce single crystals of Tris–Sarcosine Calcium Chloride (TSCC) from aqueous solution. The cell parameters of the grown crystals were determined using the single-crystal X-ray diffraction analysis. The existence of functional groups in TSCC was confirmed using the Fourier Transform Infrared spectrum analysis. Energy-Dispersive X-ray Analysis verified the chemical composition of the TSCC crystal. The optical transmittance of TSCC was greater than 90%, according to the UV–Vis–NIR transmittance spectrum measurements. This indicates TSCC is an appropriate material for NLO applications. The optical characteristics of the grown crystal, including band gap energy, were determined. The photoluminescence characteristics of TSCC crystal were also studied in order to better understand its optical device manufacturing. The thermal behavior of TSCC was investigated using the TGA/DTA and DSC studies. For various temperatures, the fluctuation of the dielectric constant and dielectric loss with regard to frequency variation was examined and the results were described in depth. The TSCC susceptibility χ(3) and nonlinear refractive index n2 values were evaluated. The saturation absorption of TSCC was revealed by open aperture Z-scan technique, and the self-defocusing performance was revealed by closed aperture Z-scan measurements. [ABSTRACT FROM AUTHOR]

The crystal of zinc potassium aluminum sulphate nonadecahydrate (ZPASDH) was first time grown by the slow evaporation method. Powder X-ray diffraction (PXRD) study was used to evaluate the structure of ZPASDH crystal. Using Fourier transform infra-red (FTIR) analysis the functional groups were identified. The UV–Vis spectrum recorded for the grown ZPASDH crystal, from the spectrum optical cutoff wavelength is observed at 387 nm and the optical band gap was also determined. Thermo gravimetric analysis (TGA) was used for confirmation of thermal stability of grown crystal. Mechanical strength of the ZPASDH single crystal was confirmed by Vickers microhardness study. Third-order nonlinear refractive index (n2 = 1.11 × 10−9 cm2/W), nonlinear absorption coefficient (β = 5.31 × 10−5 cm/W) and optical limiting behavior of ZPASDH crystal have been determined by Z-scan technique. [ABSTRACT FROM AUTHOR]

Growth of new semi organic nonlinear optical material Bis Thiourea Lithium Potassium Sulphate (BTLKS) single crystals have been grown at 40 °C temperature by slow evaporation method. The cell parameters of the grown crystal are calculated by single crystal XRD. The functional groups are confirmed by FTIR spectral studies. The optical constants and the lower cut-off wavelength of BTLKS have been studied by UV-vis-NIR spectrophotometer. The mechanical stability of BTLKS is tested by Vickers hardness tester. The second harmonic generation efficiency of BTLKS is obtained by Nd:YAG laser by Kurtz - Perry powder technique and it was found to be 1.7 times that of pure lithium potassium sulphate (LKS) single crystals. [ABSTRACT FROM AUTHOR]