| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Outline of Final Research Achievements |
Tuning of plasmon resonant wavelength of a metallic tip in near-field scanning optical microscopy is highly important to make it more practical and reliable. In this research, we applied plasmon hybridization in near-field scanning optical microscopy for wide-range tuning of plasmon resonance. Plasmon hybridization between a metallic tip and a thin metallic substrate allows to tune plasmon resonant wavelength over wide frequency range, just by changing metal thickness. We have performed FDTD simulation to optimize controllability of plasmon resonance, where kind of material, apex size, and metal thickness were investigated. Also, we have found out an optical conditions to fabricate extremely smooth metal film on a glass substrate, by adjusting evaporation conditions such as evaporation angle and rate. We have controlled plasmon resonant wavelength from 450 nm to 650 nm through the plasmon hybridization technique.
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