Figure 8
Plasmonic cavity with a low index layer of thickness t low . (a) Cross-sectional electric field intensity profile. (b) Electric field intensity distribution along the z-axis at the center of the cavity. (c) Q factors (black) and confinement factors (red) at room temperature plotted as functions of tlow. Dotted lines indicate the Q and confinement factors of the cavity without a low-index layer. Adapted from [8].