We numerically show that surface lattice resonances (SLR) in periodic localized surface plasmon (LSP) waveguides integrated on a dielectric waveguide can be excited via in-phase evanescent coupling, by incident propagation vector outside the light cone and without any constraint on the structural symmetry. FDTD simulations show that the coupling between wideband LSP resonances and narrowband SLR results in a Fano-like resonance, showing few nanometers large sharp spectral features that may be exploited for achieving new functions for integrated optics and sensing.
Numerical demonstration of surface lattice resonance excitation in integrated localized surface plasmon waveguides / Magno, G.; Leroy, B.; Barat, D.; Pradere, L.; Dagens, B.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 30:4(2022), pp. 5835-5847. [10.1364/OE.449832]
Numerical demonstration of surface lattice resonance excitation in integrated localized surface plasmon waveguides
Magno G.
;
2022-01-01
Abstract
We numerically show that surface lattice resonances (SLR) in periodic localized surface plasmon (LSP) waveguides integrated on a dielectric waveguide can be excited via in-phase evanescent coupling, by incident propagation vector outside the light cone and without any constraint on the structural symmetry. FDTD simulations show that the coupling between wideband LSP resonances and narrowband SLR results in a Fano-like resonance, showing few nanometers large sharp spectral features that may be exploited for achieving new functions for integrated optics and sensing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.