2013 Fiscal Year Final Research Report
FaVol.274,brication of periodic metal structure by interfering ultra-short pulse laser processing and application for surface-enhanced Raman spectroscopy
| Project/Area Number |
23360035
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Osaka University |
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Principal Investigator |
NAKATA Yoshiki 大阪大学, レーザーエネルギー学研究センタ, 准教授 (70291523)
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| Co-Investigator(Kenkyū-buntansha) |
TSUBOI Yasuyuki 大阪市立大学, 理学部, 教授 (00283698)
NAKAMURA Daisuke 九州大学, 大学院システム情報科学研究院, 准教授 (40444864)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYANAGA Noriaki 大阪大学, レーザーエネルギー学研究センター, 教授 (80135756)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 超短パルスレーザー / 干渉加工 / 金属周期ナノ構造 / ビーム整形 / プラズモニクス / 表面増強ラマン散乱 / MHA / FDTD |
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| Research Abstract |
Peculiar nano-sized and periodic metal structures such as nanowhisker and nanodrop in matrix can be fabricated by interfering ultra-short pulse laser processing of metal thin film via nano-sized metal liquid flow and solidification, which is called as Solid-Liquid-Solid (SLS) process. To apply these structures to plasmonic devices, large area processing was performed with controlling of processing profile by spatial light filter and Spatial-Light-Modulator (SLM) devices, and with 3D scanning processing technique. The system was applied to fabricate Surface-Enhanced Raman Scattering (SERS) substrate and MHA metamaterial, and their characters were examined. In addition, according to the observed results of nano-sized metal structures by scanning and transmission electron microscope, electro-magnetic field with laser irradiation was simulated by FDTD method, and the results proved the field enhancement effect.
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[Presentation] Effect of Laser Irradiation on the Properties of ZnO Thin Films and its Application to Selective-Growth of ZnO Nano /Microcrystals2014
Author(s)
Tetsuya Shimogaki, Kota Yamasaki, Yuki Kawahara, Shihomi Nakao, Kousuke Harada, Mitsuhiro Higashihata, Hiroshi Ikenoue, Yoshiki Nakata, Daisuke Nakamura, Tanemasa Asano, Tatsuo Okada
Organizer
Laser precision Microfabrication
Place of Presentation
リトアニア
Year and Date
2014-06-18
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