| Budget Amount *help |
¥48,880,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥11,280,000)
Fiscal Year 2013: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2012: ¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
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| Outline of Final Research Achievements |
Utilizing the synergistic effect of the plasmonic enhancement and temporal entangled photons in plasmonic metal nanostructures, we have developed elemental technologies for the realization of highly-efficient two-photon reaction process. We performed theoretical evaluations of enhanced electric fields and found that further electric field enhancement could be expected by the periodic array of gold nano-gap structures. Then, we experimentally examined that two-photon excited fluorescence was enhanced by at least 5 order of magnitude in the periodic gold nanostructure. Furthermore, using a tapered-fiber coupled microsphere, we also developed a plasmonic-photonic hybrid system for highly-efficient plasmon excitation, which can focus an incident light to a small gold nanostructure with 100% efficiency. To experimentally verify the efficient plasmon excitation, we succeeded in the observation of SHG and two-photon excited fluorescence under a weak CW excitation (a few kW/cm2).
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