Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods
Ag nanorods (Ag NRs) with a mean aspect ratio of 3.9 were prepared through a wet-chemical method, and the absorption spectra for various aspect ratios were obtained. The morphology transformation of Ag NRs irradiated with a femtosecond pulse laser was investigated through transmission electron micro...
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| Format: | Article |
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MDPI AG
2019-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/3/363 |
| _version_ | 1819081891315187712 |
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| author | Dezhi Zhu Jianfeng Yan |
| author_facet | Dezhi Zhu Jianfeng Yan |
| author_sort | Dezhi Zhu |
| collection | DOAJ |
| description | Ag nanorods (Ag NRs) with a mean aspect ratio of 3.9 were prepared through a wet-chemical method, and the absorption spectra for various aspect ratios were obtained. The morphology transformation of Ag NRs irradiated with a femtosecond pulse laser was investigated through transmission electron microscopy (TEM). The near-field ablation was dependent on the laser polarization and wavelength. Laser-induced high electric field intensity was observed at the ends, middle, and junctions of the Ag NRs under various ablation conditions. Through simulation, the evolution mechanism was analyzed in detail. The effect of laser polarization angle on plasmonic junction welding was also investigated. By controlling the electronic field distribution, several nanostructures were obtained: bone-shaped NRs, T-shaped NRs, dimers, trimers, curved NRs, and nanodots. This study suggests a potentially useful approach for the reshaping, cutting, and welding of nanostructures. |
| first_indexed | 2024-12-21T20:07:59Z |
| format | Article |
| id | doaj.art-ac5a3a5efced4c79a93bbc927a45b4a0 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-21T20:07:59Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ac5a3a5efced4c79a93bbc927a45b4a02022-12-21T18:51:48ZengMDPI AGApplied Sciences2076-34172019-01-019336310.3390/app9030363app9030363Femtosecond Pulse Laser Near-Field Ablation of Ag NanorodsDezhi Zhu0Jianfeng Yan1Department of Mechanical Engineering, Tsinghua University, Beijing 100084, ChinaDepartment of Mechanical Engineering, Tsinghua University, Beijing 100084, ChinaAg nanorods (Ag NRs) with a mean aspect ratio of 3.9 were prepared through a wet-chemical method, and the absorption spectra for various aspect ratios were obtained. The morphology transformation of Ag NRs irradiated with a femtosecond pulse laser was investigated through transmission electron microscopy (TEM). The near-field ablation was dependent on the laser polarization and wavelength. Laser-induced high electric field intensity was observed at the ends, middle, and junctions of the Ag NRs under various ablation conditions. Through simulation, the evolution mechanism was analyzed in detail. The effect of laser polarization angle on plasmonic junction welding was also investigated. By controlling the electronic field distribution, several nanostructures were obtained: bone-shaped NRs, T-shaped NRs, dimers, trimers, curved NRs, and nanodots. This study suggests a potentially useful approach for the reshaping, cutting, and welding of nanostructures.https://www.mdpi.com/2076-3417/9/3/363Ag nanorodsfemtosecond pulse lasernear-field ablationpolarization |
| spellingShingle | Dezhi Zhu Jianfeng Yan Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods Applied Sciences Ag nanorods femtosecond pulse laser near-field ablation polarization |
| title | Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods |
| title_full | Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods |
| title_fullStr | Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods |
| title_full_unstemmed | Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods |
| title_short | Femtosecond Pulse Laser Near-Field Ablation of Ag Nanorods |
| title_sort | femtosecond pulse laser near field ablation of ag nanorods |
| topic | Ag nanorods femtosecond pulse laser near-field ablation polarization |
| url | https://www.mdpi.com/2076-3417/9/3/363 |
| work_keys_str_mv | AT dezhizhu femtosecondpulselasernearfieldablationofagnanorods AT jianfengyan femtosecondpulselasernearfieldablationofagnanorods |