| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Outline of Final Research Achievements |
We have observed that a low-fluence femtosecond (fs) laser pulse can transiently excite surface plasmon polaritons (SPPs) on a silicon grating metalized by the intense fs laser pulse. The experimental results obtained clearly show that SPP wavelength, propagation length, and amplitude can be changed by the laser fluence and time difference between two beams, and that they have optimum for its strong excitation.
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