Nonlinear response of Josephson fluxonic diode to radiation based on geometry and incident radiation point

The stimulated generation of vortex and antivortex pairs in reverse-biased Josephson fluxonic diode is used for detecting induced current signal. Radiation signal can either be coupled directly to the junction by modulating the bias current or be added to the control current that is responsible for the reversing magnetic field inside the Josephson fluxonic diode. Sensitivity to signals is a function of geometry and device dimensions, bias, and control quiescent points. Numerical simulations have been performed for both bias and control current to obtain the most appropriate configurations and quiescent points for detection.