Role of annealing on the structural and optical properties of nanostructured diaceto bis-benzimidazole Mn(II) complex thin films

Praveen, P.; Babu, R. Ramesh; Ramamurthi, K.

doi:10.1016/j.saa.2016.10.030

Cited by 14 publications

(1 citation statement)

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“…The variation in refractive indices, self-focussing and self-defocussing behaviours can be identified in Z-scan technique. This knowledge about the crystals is of great importance in optical limiting and optical switching applications [24]. Z-scan is an intensity measurement technique in which a crystal is scanned across Z -axis through a small distance and observed for intensity variation.…”

Section: 6a Z-scan Techniquementioning

confidence: 99%

Linear and nonlinear optical properties of 4-nitrobenzoic acid (4-NBA) single crystals

et al. 2018

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4-Nitrobenzoic acid (4-NBA) single crystals were studied for their linear and nonlinear optical properties. The crystals were grown by slow solvent evaporation method at room temperature. The structure and functional groups were confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic studies. The 4-NBA crystal has an optical absorption at 263 nm and a wide transparency window for the visible light. Theoretical predictions for the measured optical absorption and charge transfer mechanism in 4-NBA were explained with HOMO and LUMO illustrations. The crystal is found to be birefringent and has produced an optical quality interference pattern. The optic plane of the crystal is observed along 100 direction. The crystal exhibits nonlinear optical effects viz. reverse saturable absorption and selfdefocussing of laser beam. Considerable nonlinear refraction (n 2) and nonlinear absorption (β) coefficients and third-order nonlinear optical susceptibility (χ (3)) were determined using Z-scan technique.

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Section: 6a Z-scan Techniquementioning

confidence: 99%