Performance of regular PML, CFS-PML, and second-order PML for waveguide problems

Davi Correia, Jian Ming Jin

Research output: Contribution to journalArticlepeer-review


The performance of regular, complex frequency shifted (CFS), and second-order perfectly matched layers (PMLs) is studied for the numerical simulation of waveguide problems. The limitations of each PML is clearly demonstrated. It is shown that the second-order PML is overall the best choice for a general problem, since the regular PML is incapable of absorbing evanescent waves and the CFS-PML is ineffective for the absorption of low-frequency propagating waves. Both two- and three-dimensional problems are considered to confirm the analysis.

Original languageEnglish (US)
Pages (from-to)2121-2126
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number10
StatePublished - Oct 1 2006


  • Computational electromagnetics
  • Finite difference time domain (FDTD) method
  • Numerical analysis
  • Perfectly matched layers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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