Fig. 3: Experimental results of reprogrammable topological propagation routes.
From: Reprogrammable plasmonic topological insulators with ultrafast control
a Photograph of the fabricated RPTI. b Experimental setup of near-field scanning. c, d Measured near-field distributions of |Ez | in topological straight and 120-degree-bend waveguides at 7.2 GHz, respectively. The corresponding coding patterns are depicted in insets. White scale bar, 30 mm. e, Comparison of measured and simulated transmissions of a topological straight waveguide. f Comparison of measured and simulated transmissions of a topological 120-degree-bend waveguide.
