2012 Fiscal Year Final Research Report
Visualization of femtosecond plasmon wave-packet by two-photon fluorescence microscopy
| Project/Area Number |
23760044
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | University of Tsukuba |
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Principal Investigator |
KUBO Atsushi 筑波大学, 数理物質系, 講師 (10500283)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 表面プラズモン / フェムト秒 / 時間分解 / 蛍光顕微鏡 / 微小光学 / 多光子励起 |
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| Research Abstract |
Motions of propagation of surface plasmon wave packets on metal films are visualized at a femtosecond time resolution by a newly developed time-resolved two-photon fluorescence microscopy using a 10 fs infrared pulse laser as the excitation source. Analyses of the time-resolved moviesquantitatively determine the group velocity, the phase velocity, the lifetime, the propagation length, and the deformation of wave packets. These experimentally determined parameters are in good consistency with the values estimated from an eigenmode function of the multilayer system.
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