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Finite-Difference Time-Domain Simulation of Wave Transmission Through Space-Time-Varying Media
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A comprehensive study on the Finite Difference Time Domain (FDTD) numerical modelling of space- and time-varying media is presented. We investigate the dynamic behavior of oblique incidence of both TM and TE electromagnetic fields on space-timemodulated gratings. In their general form, these media have electrical permittivity, magnetic permeability, and electrical conductivity modulated across both space and time. We provide the FDTDschemes, the Courant-Friedrichs-Lewy (CFL) stability condition and equations for both TM and TE wave illuminations of space-time-varying slabs, along with the boundary conditions for the FDTD scheme. Furthermore, with engaging illustrative examples, we showcase the versatility and applications of space-time-varying media.
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Cited by 1 Pith paper
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Light Interaction With a Space-Time-Modulated Josephson Junction Array and Application to Angular-Frequency Beam Multiplexing
A space-time-modulated Josephson junction array is claimed to split an incoming microwave beam into frequency-shifted beams at different angles, but the analytic support is invalidated by a Fourier-coefficient error.
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