Classification and analysis of excitations in a coupled finite nanoparticle cylinder-shell lattice

Nano Lett. 2008 Sep;8(9):2944-8. doi: 10.1021/nl8018017. Epub 2008 Aug 13.

Abstract

We present a general model for computing an optical response function of a finite shell lattice of semiconducting or metallic nanoparticles. Within a second quantization formalism, a cylindrical shell of induced, coupled dipoles is considered in the presence of an external electric field. Numerical analysis of the eigenmodes and quantum mechanical response function allow us to identify resonator effects due to constructive interferometric interaction of the light to the dipole lattice. Adjusting the wavelength of the external electric field, a coherent resonance excitation is possible for a fixed parameter of the cylinder radius.