Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water
The nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, a...
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MDPI AG
2022-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/23/4220 |
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| author | Tarek Mohamed Ali Farhan Hanan Ahmed Mohamed Ashour Samar Mamdouh Reinhold Schuch |
| author_facet | Tarek Mohamed Ali Farhan Hanan Ahmed Mohamed Ashour Samar Mamdouh Reinhold Schuch |
| author_sort | Tarek Mohamed |
| collection | DOAJ |
| description | The nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, an ultraviolet-visible spectrophotometer, and atomic absorption spectrophotometry were used to determine the size, shape, absorption spectra, and concentration of the ZnONPs colloids. The nonlinear absorption coefficient and nonlinear refractive index were measured at different excitation wavelengths and intensities. The nonlinear absorption coefficient of the ZnONPs colloids was found to be positive, caused by reverse saturable absorption, whereas the nonlinear refractive index was found to be negative due to self-defocusing in the ZnONPs. Both laser parameters, such as excitation wavelength and input intensity, and nanoparticle features, such as concentration and size, were found to influence the nonlinear optical properties of the ZnONPs. |
| first_indexed | 2024-03-09T17:39:09Z |
| format | Article |
| id | doaj.art-deff7e795570406a93b5c6094a6892d3 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T17:39:09Z |
| publishDate | 2022-11-01 |
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| series | Nanomaterials |
| spelling | doaj.art-deff7e795570406a93b5c6094a6892d32023-11-24T11:47:30ZengMDPI AGNanomaterials2079-49912022-11-011223422010.3390/nano12234220Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled WaterTarek Mohamed0Ali Farhan1Hanan Ahmed2Mohamed Ashour3Samar Mamdouh4Reinhold Schuch5Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, EgyptAl Anbar Health Directorate, Ramadi 31001, IraqLaser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, EgyptLaser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, EgyptLaser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, EgyptPhysics Department, Stockholm University, AlbaNova, 10691 Stockholm, SwedenThe nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, an ultraviolet-visible spectrophotometer, and atomic absorption spectrophotometry were used to determine the size, shape, absorption spectra, and concentration of the ZnONPs colloids. The nonlinear absorption coefficient and nonlinear refractive index were measured at different excitation wavelengths and intensities. The nonlinear absorption coefficient of the ZnONPs colloids was found to be positive, caused by reverse saturable absorption, whereas the nonlinear refractive index was found to be negative due to self-defocusing in the ZnONPs. Both laser parameters, such as excitation wavelength and input intensity, and nanoparticle features, such as concentration and size, were found to influence the nonlinear optical properties of the ZnONPs.https://www.mdpi.com/2079-4991/12/23/4220nanoparticlesnonlinear opticsfemtosecond laserhigh repetition ratezinc oxide nanoparticlesZ-scan |
| spellingShingle | Tarek Mohamed Ali Farhan Hanan Ahmed Mohamed Ashour Samar Mamdouh Reinhold Schuch Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water Nanomaterials nanoparticles nonlinear optics femtosecond laser high repetition rate zinc oxide nanoparticles Z-scan |
| title | Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water |
| title_full | Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water |
| title_fullStr | Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water |
| title_full_unstemmed | Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water |
| title_short | Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water |
| title_sort | nonlinear optical properties of zinc oxide nanoparticle colloids prepared by pulsed laser ablation in distilled water |
| topic | nanoparticles nonlinear optics femtosecond laser high repetition rate zinc oxide nanoparticles Z-scan |
| url | https://www.mdpi.com/2079-4991/12/23/4220 |
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