Details

Autor(en) / Beteiligte

• Karthika, P. C.
• Sharath, R. A.
• Angeline Little Flower, N.
• Mani Rahulan, K.
• Vinitha, G.
• Sasidharan, M.
• Prakashbabu, D.

Titel

Tuning the non-linear optical absorption properties of Eu3+-doped NiWO4 nanostructures

Ist Teil von

• Journal of materials science. Materials in electronics, 2022-04, Vol.33 (11), p.8308-8317

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• NiWO 4 nanostructures doped with different ratios of Eu 3+ have been prepared by a chemical precipitation method. The influence of Eu 3+ on NiWO 4 nanostructures were characterized using X-ray diffraction (XRD), UV–visible diffuse reflectance spectra, scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and Raman. XRD patterns display that the samples crystallize to monoclinic wolframite structure. SEM images reveal that the particles are well uniformly dispersed with average particle size lies around 40–50 nm. Third-order nonlinear optical properties were studied by a Z-scan technique at 532 nm using continuous wave diode pumped Nd:YAG laser. Open and closed aperture results reveal the nanostructures to possess reverse saturation absorption and negative nonlinear refraction. The calculated absorption coefficients (β), imaginary part of third-order susceptibilities Imχ (3) are in the order of 10 –6 (cm/W) and 10 –7 esu. These results indicated that the synthesized nanostructures could be promising materials for optical device applications.