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Article Dans Une Revue IEEE Photonics Journal Année : 2018

Plasmonic Stripes in Aqueous Environment Co-Integrated With Si3N4 Photonics

Résumé

We demonstrate the design, fabrication, and the experimental characterization of gold-based plasmonic stripes butt-coupled with low-pressure-chemical-vapor-deposition (LPCVD)-based Si 3 N 4 waveguides for the excitation of surface-plasmon-polariton (SPP) modes in aqueous environment. Plasmonic gold stripes, in aqueous environment, with cross-sectional dimensions of 100 nm × 7 μm were interfaced with 360 nm × 800 nm Si 3 N 4 waveguides cladded with low-temperature-oxide, exploiting linear photonic tapers with appropriate vertical (VO) and longitudinal (LO) offsets between the plasmonic and photonic waveguide facets. An interface insertion loss of 2.3 ± 0.3 dB and a plasmonic propagation length (L spp) of 75 μm have been experimentally measured at 1.55 μm for a VO of 400 nm and an LO of 500 nm, with simulation results suggesting high tolerance to VO and LO misalignment errors. The proposed integration approach enables seamless co-integration of plasmonic stripes, in aqueous environment, with a low-loss and low-cost LPCVD-based Si 3 N 4 waveguide platform, revealing its strong potential for future employment in biochemical sensing applications.

Dates et versions

hal-03543137 , version 1 (25-01-2022)

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Citer

George Dabos, Dimitra Ketzaki, Athanasios Manolis, Laurent Markey, Jean Claude Weeber, et al.. Plasmonic Stripes in Aqueous Environment Co-Integrated With Si3N4 Photonics. IEEE Photonics Journal, 2018, 10 (1), pp.1-8. ⟨10.1109/JPHOT.2018.2792533⟩. ⟨hal-03543137⟩
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