Modeling and measurement of optical response of 1D array of metallic nanowires for sensing and detection application

We have investigated 1D nanosized metallic wires with subwavelength dimensions in which localized surface plasmon (LSP) and surface plasmon polariton (SPP) can exist. Elaboration of the localized surface plasmon resonance (LSPR) based device for scaling down to nanometric dimensions, which provide significant flexible design is the aim of this paper. Modeling of the interaction of the incident light with the periodic system of nanowires (differential formalism) and measurements of the optical (transmittance, extinction) properties of the structures under consideration were performed to reveal the general trends in the design of the gold nanostructure geometry to optimize sensitivity of sensor system.