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Spectral and third order nonlinear optical properties of Yttrium-doped BaWO4 nanostructures
Mani Rahulan K, Annie Sujatha R, Angeline Little Flower N, , Suhana A.
Published in Elsevier BV
Volume: 88
Pages: 466 - 471
BaWO4 nanostructures doped with different concentrations of Yttrium have been synthesized by a chemical method. The as-prepared samples were characterized by UV–vis diffuse reflectance spectra, X-ray diffraction, Fourier transform infrared spectroscopy, Transmission electron microscopy and Raman spectra. From the UV–vis spectra, it is seen that absorption band edge shifted towards the visible region upon Y doping. The X-ray diffraction and Raman analyses reveal that the BaWO4 powders present a tetragonal structure. The third-order nonlinear optical responses of BaWO4 nanostructures on the effect of Y concentrations was investigated by Z-scan technique using a continuous wave Nd:YAG laser at 532 nm. Experimental results have shown that the observed nonlinear absorption and nonlinear refraction behavior is attributed to saturable absorption and thermal nonlinear effects. © 2018 Elsevier B.V.
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JournalData powered by TypesetOptical Materials
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Open AccessNo