Biosynthesis, characterization and nonlinear optical response of spherical flake-shaped copper oxide nanostructures
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Published:2022-10-27
Issue:
Volume:
Page:
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ISSN:0218-8635
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Container-title:Journal of Nonlinear Optical Physics & Materials
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language:en
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Short-container-title:J. Nonlinear Optic. Phys. Mat.
Author:
Sumantha H. S.1,
Suresha B. L.1
Affiliation:
1. Department of Physics, B.M.S. College of Engineering, Bengaluru 560019, India
Abstract
The copper oxide nanoparticles (CuO NPs) were synthesized via solution combustion approach with Bengal gram powder as a fuel. The XRD analysis confirms the monoclinic structure of CuO NPs. FT-IR spectrum reveals the formation of CuO NPs. SEM studies show that the NPs are nearly spherical, and the elemental composition was confirmed by EDAX. The absorption spectra revealed a direct optical band gap of 1.50[Formula: see text]eV. DFT calculations were performed to determine the HOMO–LUMO energy bandgap and found to be 1.72[Formula: see text]eV, which is in good agreement with the experimental value. The Z-scan technique was used to investigate the third-order nonlinear optical (NLO) characteristics using DPSS continuous wave laser (532[Formula: see text]nm, 200[Formula: see text]mW). A high reverse saturation absorption and negative nonlinear refractions were observed. Third-order NLO parameters [Formula: see text], [Formula: see text] and [Formula: see text] were found to be [Formula: see text][Formula: see text]cm/W, [Formula: see text][Formula: see text]cm2/W and [Formula: see text][Formula: see text]esu, respectively. The CuO NPs also displayed strong optical limiting behavior with a limiting threshold of 2.11[Formula: see text]kW/cm2.
Publisher
World Scientific Pub Co Pte Ltd
Subject
Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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