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Proceedings Paper

Theoretical study of nonlocal effects in the optical response of metallic nanoshells
Author(s): Railing Chang; P.T. Leung
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Paper Abstract

The optical response of metallic nanoshell which includes coated dielectric particles is investigated in the longwavelength limit in which the nonlocal response of the metal is taken into account. Using our recent formalism which calculates the nonlocal multipole polarizability of such a shell, we have studied how these nanoshells interact with both the far field and near field of a light source. For the far field case, both absorption and scattering cross sections for an incident plane wave are calculated in the dipole approximation. For the near field case, we study how the fluorescence properties of an emitting molecule in the vicinity of a nanoshell are affected, by including all higher multipolar response of the shell. It is found that the nonlocal effects are most prominent for higher order multipoles, and hence for the description of molecules in close proximity interacting with the nanoshell.

Paper Details

Date Published: 18 November 2005
PDF: 10 pages
Proc. SPIE 6002, Nanofabrication: Technologies, Devices, and Applications II, 60020V (18 November 2005); doi: 10.1117/12.629076
Show Author Affiliations
Railing Chang, National Taiwan Ocean Univ. (Taiwan)
National Taiwan Univ. (Taiwan)
P.T. Leung, Portland State Univ. (United States)


Published in SPIE Proceedings Vol. 6002:
Nanofabrication: Technologies, Devices, and Applications II
Warren Y.-C. Lai; Leonidas E. Ocola; Stanley Pau, Editor(s)

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