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Since simulations cannot run in infinite space, absorbing boundaries are required. PML is a synthetic material that absorbs incident radiation without reflection, simulating an open boundary. The article should cover what the software is,
The auto-shutoff level drops below the target threshold before the time limit expires.
Change X and Y boundary conditions to (for normal incidence) or Bloch (for oblique incidence). Set the Z boundaries to PML .
Place Frequency-domain field profile monitors to visualize steady-state E and H field profiles. Use Flux/Power monitors to calculate transmission, reflection, and absorption spectra. 3. Metasurface and Waveguide Simulation Examples