title: Double-tuned light-absorption characteristics in the attenuated-total-reflection structure containing a metal-clad dielectric-film waveguide with a low-refractive-index buffer layer.
abstract: We have demonstrated that double-tuned absorptions have the characteristics of forming a flat peak in an attenuated-total-reflection structure containing a metal-clad dielectric-film waveguide with a low-refractive-index buffer layer. The double-tuned characteristics occur because the guided mode in the film waveguide couples to the surface plasma mode at the metal-buffer layer interface.
authors.affiliation: Kyushu Institute of Technology, Tobataku Kitakyushu 804, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kitajima
authors.forename: K
authors.initials: K
authors.lastname: Fujita