Effect of roughness on surface plasmons propagation along deep and shallow metallic diffraction gratings
Résumé
The roughness of shallow or deep metallic diffraction gratings modifies the propagation of surface plasmon mode along the metallic-air interface. The scattering losses lead to a spectral or angular broadening of the surface plasmon resonance (SPR) and to a shift of the resonance wavelength and coupling angle. This mechanism is deeply analyzed both experimentally and theoretically to overcome these effects when such structures, in particular deep ones, are used as SPR-based sensors.
Domaines
Optique [physics.optics]| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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| Commentaire | “© 2022 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. https://doi.org/10.1364/OL.443659 |
