Nanoantennes plasmoniques

Florian Bigourdan 1
1 Laboratoire Charles Fabry / Naphel
LCF - Laboratoire Charles Fabry
Abstract : The work of this thesis has been devoted to a few applications of antenna concepts for the manipulation of light. In the optical range, surface modes called surface plasmon polaritons take place in the vicinity of metallic antennas, enabling a strong light/matter interaction within highly confined volumes. In order to take advantage of this property, three applications of plasmonic antennas will be investigated. First, in the case of single-photon sources, both theoretical and experimental studies of single-emitters performance when coupled to a planar metallic antenna will be presented. A strategy to enhance its performance will be studied theoretically. Then, in the case of electrical generation of light by inelastic electron tunneling, we will analyse the modification of radiation properties close to a metallic nano-rod. This analysis paves the way towards the design of integrated, compact electrical sources of surface plasmons. Finally, in the case of detecting a weak quantity of molecules, the interaction between an infrared light beam and a sub-nanometric layer of resonant molecules deposited on a nanostructured metallic mirror will be studied.
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Florian Bigourdan. Nanoantennes plasmoniques. Optique [physics.optics]. Institut d’Optique Graduate School, 2014. Français. ⟨NNT : 2014IOTA0020⟩. ⟨tel-01143865⟩

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