By combining Dirichlet to Neumann (DtN) operators and Perfectly Matched Layers (PML’s) as boundary conditions on a rectangular domain on which the Helmholtz equation is solved, the disadvantages of both methods are greatly diminished. Due to the DtN operators, light may be accurately fluxed into the domain, while the PML’s absorb light that is reflected from the corners of the domain when only DtN boundaries are used.
|Title of host publication||Proceedings of the 12th International Conference on Mathematical Methods in Electromagnetic Theory, MMET08|
|Place of Publication||Piscataway|
|Number of pages||3|
|Publication status||Published - 2008|
Stoffer, R., Sopaheluwakan, A., Hammer, M., & van Groesen, E. W. C. (2008). A combination of Dirichlet to Neumann operators and perfectly matched layers as boundary conditions for optical finite element simulations. In Proceedings of the 12th International Conference on Mathematical Methods in Electromagnetic Theory, MMET08 (pp. 124-126). [10.1109/MMET.2008.4580911] Piscataway: IEEE. https://doi.org/10.1109/MMET.2008.4580911