Figure 4
From: Isotropic Backward Waves Supported by a Spiral Array Metasurface
Simulated x-component of the time-averaged power flow (arbitrary scale), integrated in the y direction (out-of-plane), for the third eigenmode (f = 9.17 GHz) with in-plane wavevector of (kx, ky) = (350, 0) m−1. This corresponds to the blue square on Fig. 2, where the group velocity is zero. The sample lies in the z = 0 plane and the x-axis of the figure spans one unit cell.
