Design of terahertz beam splitter based on surface plasmon resonance transition

Liu Xiang^{1, 2}, Yang Dong-Xiao^{1, 2, †,}

Electric field density distributions (f = 0.4 THz) of E_z on cross structure for (a) x–y plane view on the surface of the metal plate, (b) y–z plane view, and (c) z–x plane view across the center of metal blocks. Electric distributions of cross structure with metal cylinder separated from substrate for (d) y–z plane view and (e) z–x plane view across the center of metal blocks.