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FDTD electromagnetic-acoustic model: A 2-D numerical coding framework

In this work, we present a model of the electromagnetic and acoustic wave propagation using the Finite-Difference Time-Domain (FDTD) (2,2) update scheme. The model can be used to validate various algorithms used in previous numerical studies of microwave radar imaging, microwave tomography, and microwave-induced thermoacoustic imaging. Our key contribution lies in the numerical coding frame work, which incorporates the simulations of the two physical processes. The advanced efficiency and organization of the computational approach, in turn, will help the development of flexible solvers.