Article Dans Une Revue IEEE Photonics Journal Année : 2018

Water Cladded Plasmonic Slot Waveguide Vertically Coupled With Si3N4 Photonics

Résumé

We demonstrate a water cladded plasmo-photonic waveguide, by exploiting the directional coupling scheme to vertically divert light from a 360 × 800 nm (height × width) Si3N4 waveguide to a plasmonic slot waveguide, enabling the excitation of a pure plasmonic mode within a 210-nm-wide slot at 1550 nm. The 150-nm-thick plasmonic slot waveguide was deposited on the top of an oxide cladded Si3N4 waveguide exhibiting an experimental plasmonic-to-photonic insertion loss of 2.24 ± 0.3 dB and a plasmonic propagation length (Lspp) of 10.8 μm at 1550 nm. The proposed plasmo-photonic waveguide holds a promise as an optical transducer element for highly sensitive and low-cost interferometric biosensors due to the significant phase change achieved per unit propagation length.

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Dates et versions

hal-03543138 , version 1 (14-04-2025)

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George Dabos, Dimitra Ketzaki, Athanasios Manolis, Evaggelia Chatzianagnostou, Laurent Markey, et al.. Water Cladded Plasmonic Slot Waveguide Vertically Coupled With Si3N4 Photonics. IEEE Photonics Journal, 2018, 10 (3), pp.2700308. ⟨10.1109/JPHOT.2018.2832461⟩. ⟨hal-03543138⟩
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