Analysis of low-loss hybrid silicon plasmon waveguide for telecommunications applications

In this paper, a numerical method based upon finite-element method has been utilized to analyze of low-loss hybrid silicon plasmonics and metal plasmonics waveguides. Using silicon instead of noble metals (e.g. Au and Ag) is an advantage in designing of optical waveguides due to have low-loss in comparison to noble at telecom bandwidth. The presented results show that the new model has smaller structures and have better performance in the terms mode confinement and 90% lower propagation loss that guide the waves five times longer.