Fig. 5: Simulations of the THz near-field asymmetry across a Josephson junction.
From: Visualizing heterogeneous dipole fields by terahertz light coupling in individual nano-junctions
a Schematic diagram showing the Josephson junction composed of a double-L structure and (b) its cross-sectional view. c Simulation geometry of the Josephson junction and the spherical dipole source. Simulation results showing the scattered field distribution around the dipole source and the junction for the disjointed case (d) and the contiguous case (e). The abstract spherical dipole source above the sample drives the Josephson junction structure through near-field coupling. Far-field scattered power for different locations of the dipole source across the Josephson junction shows (f) the asymmetric response when the break is present in the upper lead whereas (g) a relatively homogeneous signal is shown for the fully connected leads.
