Extraordinary transmission and reflection in PT -symmetric two-segment-connected triangular optical waveguide networks with perfect and broken integer waveguide length ratios
Wu Jia-Ye1, 2, Wu Xu-Hang1, Yang Xiang-Bo1, ‡, Li Hai-Ying1
       

Distribution of photonic modes in the networks with (a) d 1 : d 2 = 1 : 0.99 , δ = 10 2 ; and (b) d 1 : d 2 = 1 : 1.99 , δ = 10 2 ; (c) and (d) enlarged figures of (b).