| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
It is possible to control the velocity of surface plasmon propagating on a structured metallic surface by designing the two-dimensional structure. In this project, we focused on a flat band, where the surface plasmon is completely localized. We proposed a metallic structure to realize the flat band for all wavevectors, and performed experimental demonstration in terahertz regions. The formation of the flat band was verified by the transmission measurement of the plane wave and an attenuated total reflection method. In addition, the extremely slow propagation of the surface plasmon unique to the flat band was demonstrated through electromagnetic simulation by computing the time evolution of the surface plasmon on the structured metallic surface.
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