Influence of surface plasmons propagation on the coherence of optical systems
type: Dataset
description: This experimental thesis studies effects induced by the spatial extension of surface plasmonpolaritons on the emission properties of organic and inorganic materials. First, we focused onleakage radiation microscopy images, a technic which is now widely used in a lot of differentscientific fields, as biology for exemple. We showed that the detected emission at a given point ofthe fluorescence image of an assembly of emitters mostly comes from the environment and notfrom the observed point, defining an influence circle related to the surface plasmon propagationlength. When the surface plasmon strongly interact with emitters, the strong coupling leadsto energy modifications in the system and new hybride states excitons-plasmons appear calledpolaritons. All the different localized emitters (aggregated dye chains) are not independantanymore. Diffusion measurments showed a collective effect induced by the strong-coupling.Two Young’s slits experiment added on the optical system confirm that an extended coherentstate of several micrometers is created as predicted by theory. All emitters behave as only onemacromolecule where the interaction is mediated by the surface plasmon.
identifier: NNT: 2012LYO10217
issued: 2026-05-07T02:01:06.730059
language: fr
modified: 2026-05-07T02:01:06.730065
contact point: Organization
  fn: CCSD
keyword: chimothechemical-sciencesother
keyword: coherence
keyword: couplage-faible
keyword: couplage-fort
keyword: infoeu-reposemanticsdoctoralthesis
keyword: j-aggregates
keyword: j-agregats
keyword: leakage-radiation-microscopy
keyword: microscopie-par-modes-de-fuite
keyword: nanocristaux
keyword: nanocrystals
keyword: plasmons-de-surface
keyword: stong-coupling
keyword: surface-plasmon-polariton
keyword: theses
keyword: weak-coupling
landing page: https://theses.hal.science/tel-00798779

Influence of surface plasmons propagation on the coherence of optical systems
type: Distribution
format: HTML
issued: 2026-05-07T02:01:06.755535
modified: 2026-05-07T02:01:06.707793
access URL: https://theses.hal.science/tel-00798779

test_moissonnage_selune
type: Agent