Localization of Light with Two Metallic Wedges: A Step Toward Surface Plasmon Sources

A new technique for localization of the light in subwavelength scale is proposed by using two adjacent metallic wedges, which are made by different metals, i.e., Al and Ag. Green’s function surface integral equation method is exploited to numerically calculate magnetic field at different points. The results illustrate that by controlling the phase difference between two surface plasmon polariton waves propagating on the sides of the first wedge and the distance between two wedges the amplitude and the phase of SPP waves generated on the sides of the second wedge can be adjusted.