Figure 3
From: Analysis of mutual couplings in a concentric circular ring plasmonic optical antenna array
Surface currents in individual uncoupled circular rings with different diameters of 1.2 µm, 1.4 µm, and 1.6 µm for Ring 1, Ring 2, and Ring 3, respectively: (a) Re (I); (b) Im(I). The solid curves are calculation data using the lumped circuit models, and the points by the “o”, “+” and “◊” are numerical simulation data points using CST’s Microwave Studio®.
