Metal nanoparticles in strongly confined beams: transmission, reflection and absorption

Year: 2009

Authors: Mojarad N.M., Zumofen G., Sandoghdar V., Agio M.

Autors Affiliation: ETH, Phys Chem Lab, CH-8093 Zurich, Switzerland.

Abstract: 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]

Journal/Review: JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS

Volume: 4      Pages from: 9014-1  to: 9014-6

More Information: This work was supported by the ETH Zurich research grant TH-49/06-1.
KeyWords: metal nanoparticles; focused light; surface plasmon-polaritons; scattering and absorption
DOI: 10.2971/jeos.2009.09014

ImpactFactor: 0.797
Citations: 19
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