On Convergence of Fourier Modal Methods used for Computing Scattering from Metallic Binary Gratings

Krishna Mohan Gundu; Arash Mafi

doi:10.1364/FIO.2010.JTuA28

Frontiers in Optics 2010/Laser Science XXVI
OSA Technical Digest (CD) (Optica Publishing Group, 2010),
paper JTuA28
•https://doi.org/10.1364/FIO.2010.JTuA28

On Convergence of Fourier Modal Methods used for Computing Scattering from Metallic Binary Gratings

Krishna Mohan Gundu and Arash Mafi

Frontiers in Optics 2010

Rochester, New York United States
24–28 October 2010
ISBN:

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Joint FiO/LS Poster Session I (JTuA)

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K. M. Gundu and A. Mafi, "On Convergence of Fourier Modal Methods used for Computing Scattering from Metallic Binary Gratings," in Frontiers in Optics 2010/Laser Science XXVI, OSA Technical Digest (CD) (Optica Publishing Group, 2010), paper JTuA28.

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Abstract

We show that the convergence problems in Fourier modal methods also arise from the square truncation of boundary matching conditions and that by seeking minimum least squared solution of rectangular truncation, convergence can be achieved.

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