| Budget Amount *help |
¥41,080,000 (Direct Cost: ¥31,600,000、Indirect Cost: ¥9,480,000)
Fiscal Year 2017: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2016: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Fiscal Year 2015: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2014: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
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| Outline of Final Research Achievements |
In this study, we developed an optical nano-shaping method to freely forming a nano-sized optical field at the nano-gap of a metallic nanostructure by using the interference of multi-polar modes excited by transferring the momentums of an irradiated Laguerre-Gaussian beam. During the period, we numerically designed optimal gold nano-multimer structures and succeeded in not only focusing the incident beam but also obtaining design guidelines for forming nano-sized light vortex and/or circular polarized fields. We also succeeded in inducing nano-light vortices over a whole substrate by controlling both the lattice and plasmonic resonances by using a periodic structures.
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