Modified stripe waveguide design for plasmonic input port structures

Abstract

We present a modified asymmetric stripe plasmonic waveguide design for plasmonic integrated input port structures. Such a waveguide shape can significantly increase the surface plasmon polariton (SPP) propagation length. A computational investigation of the waveguide mode analysis, excitation, and guiding is presented as well as SPP propagation length improvement strategies. The proposed structure has the potential to be CMOS compatible and could be used in highly integrated optoelectric circuits.