Abstract

The complex frequency shifted (CFS) perfectly matched layer (PML) has been proven to be more efficient in attenuating evanescent waves and reducing late-time reflections than the original PML. In this letter, the piecewise linear recursive convolution (PLRC) method is combined with the bilinear transform (BT) to implement the CFS-PML for unmagnetized plasma simulation. Compared to the original bilinear transform implementation, the computational cost of the PLRC CFS-PML is greatly reduced with the same absorbing performance.

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