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- Title
Designing the plasmonic response of shell nanoparticles: spectral representation.
- Authors
Román-Velázquez, Carlos E; Noguez, Cecilia
- Abstract
A spectral representation formalism in the quasistatic limit is developed to study the optical response of nanoparticles, such as nanospheres, nanospheroids, and concentric nanoshells. A transfer matrix theory is formulated for systems with an arbitrary number of shells. The spectral representation formalism allows us to analyze the optical response in terms of the interacting surface plasmons excited at the interfaces by separating the contributions of the geometry from those of the dielectric properties of each shell and surroundings. Neither numerical nor analytical methods can do this separation. These insights into the physical origin of the optical response of multishelled nanoparticles are very useful for engineering systems with desired properties for applications in different fields ranging from materials science and electronics to medicine and biochemistry.
- Publication
The Journal of chemical physics, 2011, Vol 134, Issue 4, p044116
- ISSN
1089-7690
- Publication type
Journal Article
- DOI
10.1063/1.3541257