Figure 5
From: Two-dimensional photonic crystal with ring degeneracy and its topological protected edge states
Robustness of TPSWs. (a,b) TPSWs along interfaces with different defects: sharp corners (a), and a strongly disordered domain wall (b). The top parts show the schematic structure: the red and blue area correspond to rods shift up and down respectively; the green marks indicate a waveguide port which excites a pseudo-spin plus edge state; the bottom parts are strength of the power flow. Color scale: energy flux intensity at the normalized frequency (ωa0/2πc = 0.74).
