| Project/Area Number |
17H02798
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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 |
Optical engineering, Photon science
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
松尾 淳一 金沢大学, 薬学系, 教授 (50328580)
川田 善正 静岡大学, 電子工学研究所, 教授 (70221900)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | 非線形光学 / 表面プラズモン / 金属ナノ粒子複合構造 / 金属ナノ粒子 / 超高速分光 / 微小光学 / ナノ光工学 / 応用光学・量子光工学 / 光物性 / 表面・界面物性 |
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| Outline of Final Research Achievements |
We made researches about nonlinear optics of Au nanoparticle complex structures. In general, the metal nanoparticles for surface plasomo excitation are forbidden for even-order nonlinear susceptibilities because of their centrosymmetric geometries. In the study, we tried obtaining even-order nonlinear susceptibilities by approaching the metal nanoparticles in the close vicinities so as to break the centrosymmetry of the system. It was demonstrated that the SHG signal intensities from the designed nanotrimaric structures was approximately one-magnitude higher than those from the conventional centrosymmetric metal nanoparticle systems.
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| Academic Significance and Societal Importance of the Research Achievements |
複合粒子系における粒子配列を調整することにより、偶数次非線形光学遷移に適した近接場をテーラーメイドに創出するという着想は、先例のない本課題の独自な視点で、実際に作成した金属ナノ粒子複合系を用いてこの点を実証できたことは学術的な価値があると考える。今後、この研究で編み出した非線形ナノ光素子の設計戦略を実用化に向けた各種非線形光学デバイス作成技術へ展開すれば、光工学分野に大きく貢献ができるものと考える。
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