Figure 6
From: Tunable plasmonic resonances in Si-Au slanted columnar heterostructure thin films

(a) Surface color rendering of FEM computed extinction coefficient for polarization parallel to the column axis (Nc) as a function of increasing Au subcolumn length, LAu, at constant column radius, R = 7.5 nm, and constant Si subcolumn length, LSi = 60 nm, and (b) for increasing column radius, R, at constant Si, LSi = 60 nm, and Au, LAu = 5 nm, subcolumn length parameters.