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.
https://hal.archives-ouvertes.fr/hal-03522925 Contributor : Isabelle VerrierConnect in order to contact the contributor Submitted on : Wednesday, January 12, 2022 - 12:45:39 PM Last modification on : Tuesday, May 10, 2022 - 12:48:41 PM Long-term archiving on: : Wednesday, April 13, 2022 - 9:35:34 PM
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, Optical Society of America - OSA Publishing, 2022, 47 (2), pp.349. ⟨10.1364/ol.443659⟩. ⟨hal-03522925⟩