Figure 3From: Coupled nanowire-based hybrid plasmonic nanocavities on thin substratesMode areas on thin and thick substrates at various gap widths d . The insets are mode profiles corresponding to different d and substrate thicknesses t. The insets marked by star, circle, and rhombus signs correspond, respectively, to t=500 nm and d=25 nm; t=5 nm and d=5 nm; and t=500 nm and d=5 nm.Back to article page