Size dependent nonlinear optical absorption in BaTiO3 nanoparticles

Woldu, Tesfakiros ; Raneesh, B. ; Sreekanth, P. ; Ramana Reddy, M.V. ; Philip, Reji ; Kalarikkal, Nandakumar (2015) Size dependent nonlinear optical absorption in BaTiO3 nanoparticles Chemical Physics Letters, 625 . pp. 58-63. ISSN 0009-2614

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Official URL: http://doi.org/10.1016/j.cplett.2015.02.020

Related URL: http://dx.doi.org/10.1016/j.cplett.2015.02.020

Abstract

We present nonlinear optical absorption properties of BaTiO3 nanoparticles of different sizes prepared by the modified polymer precursor method. Structural properties of the samples were characterized using XRD and TEM, and optical properties by UV–visible light absorption. Nonlinear optical properties of the samples were measured by the single-beam open aperture Z-scan technique using 5 ns laser pulses at 532 nm. Results show that all samples exhibit a size dependent nonlinear optical response. Optical limiting efficiency increases with grain size and has a strong dependence on the structural phase of the particles. Nonlinear optical absorption is found to be enhanced when the particles undergo a transition from the cubic to the tetragonal phase.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:121061
Deposited On:09 Jul 2021 04:49
Last Modified:09 Jul 2021 04:49

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