| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
We investigated the magneto-optical (MO) effect with localized surface plasmon resonance (LSPR) on ferromagnetic metal(FM) nanoparticles. We estimated the electric-field enhancement of the FM nanoparticles caused by LSPR based on Mie scattering theory and compared it with that of Au nanoparticles. The electric-field enhancement of the FM nanoparticles was 15-17, which is half of that of the Au nanoparticles. In order to explain the calculated results, we prepared FM nanoparticles by a self-assembly process. We measured the optical transmission spectra and Faraday effect of the FM nanoparticles. Although remarkable MO enhancement was not observed, we found characteristic MO spectra and a peak shift at wavelengths longer than 800nm in samples. We investigated the size effect and reproduced the experimental results. We concluded that localized plasmons of FM nanoparticles can produce electric-field enhancement, which is not enough to increase the MO effect.
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