| 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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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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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 / 表面増強ラマン散乱（SERS） / フェムト秒レーザー / 応用光学・量子光工学 / 干渉 / ナノ材料 / 金属 / 周期構造 / メタマテリアル / 表面増強ラマン（SERS） / レーザープロセッシング / 応用光学・量子工学 / 誘導ラマン散乱 |
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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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