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Preparation and study of nonlinear optical response of Ag and Au nano particles doped PVA/PVP thin films

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Abstract

Nanosize Ag and Au were prepared by laser ablation method and the nonlinear optical properties of Ag and Au nanoparticles doped polyvinylalcohol (PVA) /polyvinylpyrrolidone (PVP) blend films were investigated using Z-scan technique with 7 ns Nd: YAG laser pulses at 532 nm. From open aperture Z-scan measurements it is found that both the Ag/PVA-PVP and Au/PVA-PVP films exhibited reverse saturable absorption. Nonlinear absorption coefficient, nonlinear refractive indices and third-order susceptibility were determined.

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Acknowledgements

This work was supported by the Department of Science and Technology, Govt. of India under. DST No: SR/S2/LOP-10/2006.

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  1. Laser and nonlinear optics laboratory, Department of Physics, National Institute of Technology Calicut, Calicut, Kerala, India

    P. Sudheesh, K. N. Sharafudeen, S. Vijayakumar & K. Chandrasekharan

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  1. P. Sudheesh
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  2. K. N. Sharafudeen
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  3. S. Vijayakumar
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  4. K. Chandrasekharan
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Correspondence to K. Chandrasekharan.

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Sudheesh, P., Sharafudeen, K.N., Vijayakumar, S. et al. Preparation and study of nonlinear optical response of Ag and Au nano particles doped PVA/PVP thin films. J Opt 40, 193–197 (2011). https://doi.org/10.1007/s12596-011-0053-x

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