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Specially designed perfectly matched layers are implemented to deal with the infinite extent of the plates.
Both the full-vector plane wave method and beam propagation method with anisotropic perfectly matched layers are employed to design and investigate the properties of the splitter.
The perfectly matched layers are shown to exhibit, in various configurations, superior absorption than the absorbing potential method and the so-called transport-like boundary conditions.
We demonstrate that the traditional, Bérenger's perfectly matched layers are unstable when applied to this model, due to the presence of the backward propagating waves.
The perfectly matched layers are located around the designed structure as the absorbing boundary condition.
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Periodic boundary conditions were used along the in-plane directions, and perfectly matched layers were used as the radiation boundary condition at the top and bottom of the simulated structure.
In the simulations, periodic boundaries were applied along the x- and y-boundaries, and perfect matched layers were applied as top and bottom boundaries of the FDTD unit cell.
Two absorbing boundary conditions, the absorbing sponge zone and the perfectly matched layer, are developed and implemented for the spectral difference method discretizing the Euler and Navier Stokes equations on unstructured grids.
The anisotropic perfectly matched layer is employed to truncate the boundary for unbounded problems.
The full vector finite element method with perfectly matched layer is used to investigate the non-linear properties of hollow core PCF effectively.
In the present paper, a perfectly matched layer is proposed for absorbing out-going two-dimensional waves in a uniform mean flow, governed by linearized Euler equations.
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