2016 Fiscal Year Final Research Report
Development of Surface plasmon excitation assited ultrafast all optical nanoswitching system
| Project/Area Number |
26286059
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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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) |
間瀬 暢之 静岡大学, 工学部, 教授 (40313936)
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) |
2014-04-01 – 2017-03-31
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| Keywords | 非線形光学 / 金属ナノ粒子 / 表面プラズモン / 非線形光学ポリマー |
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| Outline of Final Research Achievements |
Linear and second-order nonlinear optical properties were examined for Au nanoprisms at localized surface plasmon (LSP) resonances. The scattering and second harmonic (SH) spectroscopies demonstrated that the linear and second-order nonlinear optical (NLO) susceptibilities of the Au nanoprisms (AuNP) were independent of the polarization direction of the excitation light wave. The isotropic behaviors were consistent with the demands imposed from the C3v-point symmetry of the systems. The SH spectroscopies were also performed for the AuNP coated with NLO polymer thin films. The SH intensities from the NLO polymer coated AuNP were approximately 5 times as high as those of the polymer-noncoated ones. The nonlinearities of the AuNP were successfully enhanced with polymeric materials rich in nonlinearities. Finally, frequency-resolved optical gating spectroscopy were performed and the ultrafast dynamics of the LSP polarizations with ~10 fs dephasing times were resolved.
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| Free Research Field |
光物性物理学
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