Infrared surface waves on semiconductor and conducting polymer

摘要: Conductors with infrared plasma frequencies are potentially useful hosts of surface electromagnetic waves sub-wavelength mode confinement for sensing applications. Such materials include semimetals, semiconductors, and conducting polymers. In this paper we present experimental and theoretical investigations on doped silicon the conducting polymer polyaniline (PANI). Resonant absorption features were measured in reflection from lamellar gratings made from doped silicon various p-polarized CO 2 laser wavelengths. The angular reflectance spectra was calculated compared experiments using complex permittivities determined (IR) ellipsometry data. Polyaniline films prepared, optical constants determined, and resonance spectra also. A specific goal is to identify a conductor having tight mode confinement, sharp reflectivity resonances, capability be functionalized biosensor