title: Effect of radiation damping on the spectral response of plasmonic components.
abstract: We explore the relationship between the near-field enhancement, absorption, and scattering spectra of localized plasmonic elements. A simple oscillator model including both internal and radiative damping is developed, and is shown to accurately capture the near- and far-field spectral features of linear optical antennas, including their phase response. At wavelengths away from the interband transitions of the metal, we expect the absorption of a plasmonic element to be red-shifted relative to the scattering, and the near-field to be red-shifted relative to both.
authors: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
authors: Mikhail A
authors: MA
authors: Kats
authors: Nanfang
authors: N
authors: Yu
authors: Patrice
authors: P
authors: Genevet
authors: Zeno
authors: Z
authors: Gaburro
authors: Federico
authors: F
authors: Capasso