Extraordinary propagation characteristics of electromagnetic waves in one-dimensional anti-<i>PT</i>-symmetric ring optical waveguide network

Extraordinary propagation characteristics of electromagnetic waves in one-dimensional anti-PT-symmetric ring optical waveguide network

Xu Jie-Feng, Yang Xiang-Bo^†, Chen Hao-Han, Lin Zhan-Hong

Distribution diagram of photonic modes, when n_a = 1.700. Here, yellow and blue regions represent SPMs and WPMs, respectively. (a) Overall picture, (b) enlarged drawing of WBP-1, and (c) enlarged drawing of the SBP-1.