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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| Format: | Article |
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Elsevier
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14213/ |
| _version_ | 1848842331780808704 |
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| author | Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin |
| author_facet | Shahriari, Esmaeil Mat Yunus, Wan Mahmood Naghavi, Kazem Talib, Zainal Abidin |
| author_sort | Shahriari, Esmaeil |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-15T07:57:26Z |
| format | Article |
| id | upm-14213 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T07:57:26Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-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 |
| spellingShingle | 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 |
| title | 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_short | 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 |
| url | http://psasir.upm.edu.my/id/eprint/14213/ http://psasir.upm.edu.my/id/eprint/14213/ |