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Strong Coupling between Self-Assembled Molecules and Surface Plasmon Polaritons.
Bigeon, J; Le Liepvre, S; Vassant, S; Belabas, N; Bardou, N; Minot, C; Yacomotti, A; Levenson, A; Charra, F; Barbay, S.
Afiliação
  • Bigeon J; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Le Liepvre S; Service de Physique de l' État Condensé, SPEC-CEA, CNRS, Université Paris-Saclay, CEA Saclay , F-91191 Gif-sur-Yvette, France.
  • Vassant S; Service de Physique de l' État Condensé, SPEC-CEA, CNRS, Université Paris-Saclay, CEA Saclay , F-91191 Gif-sur-Yvette, France.
  • Belabas N; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Bardou N; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Minot C; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Yacomotti A; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Levenson A; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
  • Charra F; Service de Physique de l' État Condensé, SPEC-CEA, CNRS, Université Paris-Saclay, CEA Saclay , F-91191 Gif-sur-Yvette, France.
  • Barbay S; Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay , C2N Marcoussis, 91460 Marcoussis, France.
J Phys Chem Lett ; 8(22): 5626-5632, 2017 Nov 16.
Article em En | MEDLINE | ID: mdl-29094949
We experimentally demonstrate strong coupling between self-assembled PTCDI-C7 organic molecules and the electromagnetic mode generated by surface plasmon polaritons (SPPs). The system consists of a dense self-assembly of ordered molecules evaporated directly on a thin gold film, which stack perpendicularly to the metal surface to form H-aggregates, without a host matrix. Experimental wavevector-resolved reflectance spectra show the formation of hybrid states that display a clear anticrossing, attesting the strong coupling regime with a Rabi splitting energy of ΩR ≃ 102 meV at room temperature. We demonstrate that the strength of the observed strong coupling regime derives from the high degree of organization of the dense layers of self-assembled molecules at the nanoscale that results in the concentration of the oscillator strength in a charge-transfer Frenkel exciton, with a dipole moment parallel to the direction of the maximum electric field. We compare our results to numerical simulations of a transfer matrix model and reach good qualitative agreement with the experimental findings. In our nanophotonic system, the use of self-assembled molecules opens interesting prospects in the context of strong coupling regimes with molecular systems.

Texto completo: 1 Bases de dados: MEDLINE Tipo de estudo: Prognostic_studies / Qualitative_research Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2017 Tipo de documento: Article País de afiliação: França

Texto completo: 1 Bases de dados: MEDLINE Tipo de estudo: Prognostic_studies / Qualitative_research Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2017 Tipo de documento: Article País de afiliação: França