Advanced boundary conditions for eigenmode expansion models

  • Peter BienstmanEmail author
  • Roel Baets


In order to realise the full potential of eigenmode expansion models, advanced boundary conditions are required that can absorb the radiation impinging on the walls of the discretisation volume. In this paper, we will discuss and compare a number of these boundary conditions, like perfectly matched layers (PMLs), open (leaky mode) boundary conditions and transparent boundary conditions (TBCs). We will also introduce the case of PMLs with infinite absorption and discuss its relation to leaky mode expansion, leading to a deeper insight into the physics of PML.

Key words

absorbing boundary conditions eigenmode expansion leaky modes optical modelling perfectly matched layers transparent boundary conditions 


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  1. 1.Department of Information Technology, INTEC/IMECGhent University, Sint-Pietersnieuwstraat 41GentBelgium

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