no code implementations • 28 Apr 2022 • W. W. Ahmed, M. Farhat, K. Staliunas, X. Zhang, Y. Wu
Non-Hermitian systems offer new platforms for unusual physical properties that can be flexibly manipulated by redistribution of the real and imaginary parts of refractive indices, whose presence breaks conventional wave propagation symmetries, leading to asymmetric reflection and symmetric transmission with respect to the wave propagation direction.