Extended Data Fig. 8: Stages in the preparation of the experimental model.
From: Photonic topological insulator in synthetic dimensions
a, Horizontal cross-section of the intensity of a propagating mode of a single waveguide (orange line) and the cross-section of the mode in the simulations (blue line). The image on the right is the intensity distribution of the mode in the direction of the cross-section. b, Same as a, but for the vertical cross-section of the propagating mode of a single waveguide. c, Coupling versus distance in the horizontal direction. d, Coupling versus distance in the vertical direction. e, Mode propagation constants of the Jx lattice based on measured experimental parameters (blue circles). The dashed line is a guide for the eye.
