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Communication Dans Un Congrès Année : 2018

Enhancing the generation of surface plasmons with optical nanoantennas

Résumé

An integrated source of surface plasmons with a large efficiency would represent an important building block for nanophotonics. Unfortunately, a light emitter located far from a metal surface is only weakly coupled to surface plasmons while an emitter positioned close to a metal surface is quenched. We theoretically show an enhancement of the surface plasmon generation by more than three orders of magnitude when the emission is assisted by a carefully designed nanopatch antenna. Such huge enhancements result from the use of hybrid modes that have both a large Purcell factor and a good efficiency for radiating surface plasmons.
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Dates et versions

hal-04278070 , version 1 (09-11-2023)

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  • HAL Id : hal-04278070 , version 1

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Cheng Zhang, Jean-Paul Hugonin, Jean-Jacques Greffet, Christophe Sauvan. Enhancing the generation of surface plasmons with optical nanoantennas. The European Optical Society Annual Meeting 2018 (EOSAM2018), Oct 2018, Delft, Netherlands. ⟨hal-04278070⟩
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