Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation
Nonlinear properties of Au nano-fluid prepared by γ-radiation method at different concentrations were investigated. Measurements of nonlinear refractive index and nonlinear absorption coefficient were carried out using a single beam Z-scan technique. A green CW laser beam operated at 532 nm was used...
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my.upm.eprints.142132015-06-19T01:44:20Z http://psasir.upm.edu.my/id/eprint/14213/ Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin Nonlinear properties of Au nano-fluid prepared by γ-radiation method at different concentrations were investigated. Measurements of nonlinear refractive index and nonlinear absorption coefficient were carried out using a single beam Z-scan technique. A green CW laser beam operated at 532 nm was used as excitation source. The Au nano-fluid shows a good third order nonlinear response. The sign of the nonlinear refractive index is found to be negative and the magnitude is in the order of 10−7 cm2/W. This nonlinear effect increases as the concentration increases from 3.119 × 10−4 to 2.354 × 10−3 M which correspond to particle sizes of 4.0–30.5 nm, respectively. A good linear relationship was obtained between nonlinear refractive index and concentration. However the relationship between nonlinear refractive index and particle size was nonlinear behavior. Elsevier 2010-05-01 Article PeerReviewed Shahriari, Esmaeil and Mat Yunus, Wan Mahmood and Naghavi, Kazem and Talib, Zainal Abidin (2010) Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation. Optics Communications, 283 (9). pp. 1929-1932. ISSN 0030-4018; ESSN: 1873-0310 10.1016/j.optcom.2010.01.005 |
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Nonlinear properties of Au nano-fluid prepared by γ-radiation method at different concentrations were investigated. Measurements of nonlinear refractive index and nonlinear absorption coefficient were carried out using a single beam Z-scan technique. A green CW laser beam operated at 532 nm was used as excitation source. The Au nano-fluid shows a good third order nonlinear response. The sign of the nonlinear refractive index is found to be negative and the magnitude is in the order of 10−7 cm2/W. This nonlinear effect increases as the concentration increases from 3.119 × 10−4 to 2.354 × 10−3 M which correspond to particle sizes of 4.0–30.5 nm, respectively. A good linear relationship was obtained between nonlinear refractive index and concentration. However the relationship between nonlinear refractive index and particle size was nonlinear behavior. |
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Article |
author |
Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin |
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Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
author_facet |
Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin |
author_sort |
Shahriari, Esmaeil |
title |
Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
title_short |
Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
title_full |
Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
title_fullStr |
Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
title_full_unstemmed |
Effect of concentration and particle size on nonlinearity of Au nano-fluid prepared by Y (60Co) radiation |
title_sort |
effect of concentration and particle size on nonlinearity of au nano-fluid prepared by y (60co) radiation |
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Elsevier |
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2010 |
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http://psasir.upm.edu.my/id/eprint/14213/ |
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