Effect of roughness on surface plasmons propagation along deep and shallow metallic diffraction gratings - Archive ouverte HAL Access content directly
Journal Articles Optics Letters Year : 2022

Effect of roughness on surface plasmons propagation along deep and shallow metallic diffraction gratings

Isabelle Verrier
Thiaka Gueye
Amadou Ndiaye
  • Function : Author
Jérôme Brunet
  • Function : Author
Yves Jourlin

Abstract

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.
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Comment : “© 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

Dates and versions

hal-03522925 , version 1 (12-01-2022)

Licence

Attribution - CC BY 4.0

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Cite

Hugo Bruhier, Isabelle Verrier, Thiaka Gueye, Christelle Varenne, Amadou Ndiaye, et al.. Effect of roughness on surface plasmons propagation along deep and shallow metallic diffraction gratings. Optics Letters, 2022, 47 (2), pp.349. ⟨10.1364/ol.443659⟩. ⟨hal-03522925⟩
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