TY - JOUR T1 - Design and Fabrication of an Optical Nanofilter based on Surface Plasmons TT - JF - ITRC JO - ITRC VL - 1 IS - 2 UR - http://ijict.itrc.ac.ir/article-1-293-en.html Y1 - 2009 SP - 21 EP - 27 KW - Surface plasmons KW - Nano structure KW - Rail model KW - Optical nano filter KW - Metal Nano Disks KW - D-FDTD N2 - Based on the metal nanodisks arranged in the longitudinal configuration and their coupled localized surface plasmon resonances, a simple optical nanofilter is designed and fabricated using the hole-mask nanolithography technique. The filtering and physical concepts of the nanostructure are discussed using the quasi-static approximation and the circuit model. The optical properties of the proposed nanofilter are investigated using the dispersive finite­difference time-domain method. The spectral response of the filter is tunable in the considered optical range. The model and simulations results agree with the experiments. M3 ER -