MC GratingModal method in deep metal-dielectric gratings: the decisive role of hidden modes
Maud Foresti, Ludivine Menez, Alexander V. Tishchenko
Maud Foresti, Ludivine Menez and Alexander V. Tishchenko, “Modal method in deep metal-dielectric gratings: the decisive role of hidden modes”, J. Opt. Soc. Am. A 23, 2501 (2006). https://doi.org/10.1364/josaa.23.002501
In deep gratings mixing metal and dielectric, most TM-polarization features are explained by an astonishingly small number of true modes, yet convergence can still fail. This paper identifies the culprit: "hidden" modes that carry the field along the metal walls and are easy to miss in the mode search, and shows that including them restores agreement.
A result that shapes how the modal codes select and check the modes they keep.
- Implemented in
- Modal Collinear, Modal Conical
- Cited on
- About MC Grating Software · The modal method (RCWA / FMM)
- Bibliography
- Reference [9]
- Full text
- Modal method in deep metal-dielectric gratings: the decisive role of hidden modes (PDF, 525 KB)
© 2006 Optica Publishing Group. This copy is hosted for the convenience of MC Grating users; the version of record is the publisher's, at the DOI above.
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