Journal
JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS
Volume 4, Issue -, Pages -Publisher
EUROPEAN OPTICAL SOC
DOI: 10.2971/jeos.2009.09014
Keywords
metal nanoparticles; focused light; surface plasmon-polaritons; scattering and absorption
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Funding
- ETH Zurich [TH-49/06-1]
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We investigate the interaction of tightly focused light with the surface-plasmon-polariton resonances of metal nanospheres. In particular, we compute the scattering and absorption ratios as well as transmission and reflection coefficients. Inspired by our previous work in [1], we discuss how well a metal nanoparticle approximates a point-like dipolar radiator. We find that a 100 nm silver nanosphere is very close to such an ideal oscillator. Our results have immediate implications for single nanoparticle spectroscopy and microscopy as well as plasmonics. [DOI: 10.2971/jeos.2009.09014]
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