Numerical analysis of a slit-groove diffraction problem

• Published in: Journal of the European Optical Society. Rapid publications Vol. 2; p. 7022
• Main Authors: Besbes, M., Hugonin, J. P., Lalanne, P., van Haver, S., Janssen, O.T.A., Nugrowati, A. M., Xu, M., Pereira, S. F., Urbach, H. P., van de Nes, A. S., Bienstman, P., Granet, G., Moreau, A., Helfert, S., Sukharev, M., Seideman, T., Baida, F. I., Guizal, B., Van Labeke, D.
• Format: Journal Article
• Language: English
• Published: European Optical Society 01-01-2007; EDP Sciences
• Subjects: computational nanophotonics; Engineering Sciences; numerical methods in electromagnetism; Other; plasmonics; surface-plasmon-polariton; computational nanophotonics; plasmonics; numerical methods in electromagnetism; surface-plasmon-polariton
• ISSN: 1990-2573; 1990-2573
• DOI: 10.2971/jeos.2007.07022

We present a comparison among several fully-vectorial methods applied to a basic scattering problem governed by the physics of the electromagnetic interaction between subwavelength apertures in a metal film. The modelled structure represents a slit-groove scattering problem in a silver film deposited on a glass substrate. The benchmarked methods, all of which use in-house developed software, include a broad range of fully-vectorial approaches from finite-element methods, volume-integral methods, and finite-difference time domain methods, to various types of modal methods based on different expansion techniques.