Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid
The nonlinear refractive index of metal Au and Ag nano-fluids prepared by γ-radiation method was investigated by a single beam Z-scan technique. Under CW 532 nm laser excitation with power output of 40 mW, the Au and Ag nano-fluids show a large thermal-induced nonlinear refractive index. In the pres...
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| Format: | Article |
| Language: | English |
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INOE Publishing House
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/17400/1/Thermally%20induced%20nonlinear%20refraction%20of%20gold%20and%20silver%20polyvinvinylpyrrolidone%20nanofluid.pdf |
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| author | Esmaeil, Shahriari Mat Yunus, Wan Mahmood |
| author_facet | Esmaeil, Shahriari Mat Yunus, Wan Mahmood |
| author_sort | Esmaeil, Shahriari |
| collection | UPM |
| description | The nonlinear refractive index of metal Au and Ag nano-fluids prepared by γ-radiation method was investigated by a single beam Z-scan technique. Under CW 532 nm laser excitation with power output of 40 mW, the Au and Ag nano-fluids show a large thermal-induced nonlinear refractive index. In the present work it was determined that the nonlinear refractive index for both Ag and Au nano-fluids are -4.80×10-8 cm2/W and -3.85×10-8 cm2/W respectively. The values of Δn0 for both samples were also calculated to be -2.05×10-4 and -1.64×10-4 respectively. Our measurements also confirmed that the nonlinear phenomenon was caused by the self-defocusing process making them good candidates for non linear optical devices. |
| first_indexed | 2024-03-06T07:40:19Z |
| format | Article |
| id | upm.eprints-17400 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:40:19Z |
| publishDate | 2010 |
| publisher | INOE Publishing House |
| record_format | dspace |
| spelling | upm.eprints-174002015-09-14T00:41:54Z http://psasir.upm.edu.my/id/eprint/17400/ Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid Esmaeil, Shahriari Mat Yunus, Wan Mahmood The nonlinear refractive index of metal Au and Ag nano-fluids prepared by γ-radiation method was investigated by a single beam Z-scan technique. Under CW 532 nm laser excitation with power output of 40 mW, the Au and Ag nano-fluids show a large thermal-induced nonlinear refractive index. In the present work it was determined that the nonlinear refractive index for both Ag and Au nano-fluids are -4.80×10-8 cm2/W and -3.85×10-8 cm2/W respectively. The values of Δn0 for both samples were also calculated to be -2.05×10-4 and -1.64×10-4 respectively. Our measurements also confirmed that the nonlinear phenomenon was caused by the self-defocusing process making them good candidates for non linear optical devices. INOE Publishing House 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17400/1/Thermally%20induced%20nonlinear%20refraction%20of%20gold%20and%20silver%20polyvinvinylpyrrolidone%20nanofluid.pdf Esmaeil, Shahriari and Mat Yunus, Wan Mahmood (2010) Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid. Journal of Optoelectronics and Advanced Materials, 12 (11). pp. 2306-2310. ISSN 1454-4164 Refractive index Optical materials Nanoparticles |
| spellingShingle | Refractive index Optical materials Nanoparticles Esmaeil, Shahriari Mat Yunus, Wan Mahmood Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title | Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title_full | Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title_fullStr | Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title_full_unstemmed | Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title_short | Thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| title_sort | thermally induced nonlinear refraction of gold and silver polyvinvinylpyrrolidone nanofluid |
| topic | Refractive index Optical materials Nanoparticles |
| url | http://psasir.upm.edu.my/id/eprint/17400/1/Thermally%20induced%20nonlinear%20refraction%20of%20gold%20and%20silver%20polyvinvinylpyrrolidone%20nanofluid.pdf |
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