Highly Confined Optical Modes in Nanoscale Metal-Dielectric Multilayers
arXiv:physics/0703137 · doi:10.1103/PhysRevB.75.241402
Abstract
We show that a stack of metal-dielectric nanolayers, in addition to the long- and short-range plasmons, guides also an entire family of modes strongly confined within the multilayer - the bulk plasmon modes. We propose the classification scheme that reflects specific properties of these modes. We report experimental verification of the bulk plasmon modes by measuring modal indices in a structure made of three pairs of silica(29nm)/gold(25nm) layers.
4 pages, 4 figures