Extended Data Fig. 4: Influence of Three-Dimensional Field Coupling on Transmission Characteristics.
From: A terahertz nonlinear diode chain based on an asymmetric double-layer topology

a, Effect of inter-substrate spacing in the double-layer MAC structure on input coupling efficiency. b, Effect of inter-substrate spacing in the double-layer MSC structure on input coupling efficiency. c, Effect of the total number of diodes in the double-layer MAC structure on input coupling efficiency, where N denotes the sum of diodes in both layers. d, Effect of the total number of diodes in the double-layer MAC structure on output coupling efficiency. e, Effect of inter-substrate spacing in the double-layer MSC structure on output coupling efficiency. f, Effect of inter-substrate spacing in the double-layer MAC structure on output coupling efficiency.