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(96) Production(s) de FELBACQ D.
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Ray chaos in a photonic crystal 
Auteur(s): Rousseau E., Felbacq D.
(Article) Publié:
Europhysics Letters (Epl), vol. 117 p.14002 (2017)
Texte intégral en Openaccess : 
Ref HAL: hal-01095319_v3
DOI: 10.1209/0295-5075/117/14002
WoS: WOS:000397026200018
Exporter : BibTex | endNote
2 Citations
Résumé: The ray dynamics in a photonic crystal was investigated. Chaos occurs for perfectly periodic crystals, the rays dynamics being very sensitive to the initial conditions. Depending on the filling factor, the ray dynamics can exhibit stable paths near (fully) chaotic motion. The degree of chaoticity is quantified through the computation of Lyapunov exponents. As a result, the more diluted is the geometry, the more chaotic is the dynamic. Therefore, despite the perfect periodicity of the geometry, light transport is a diffusive process which can be tuned from normal diffusion (brownian motion) to anomalous diffusion because of the existence of L ́evy flights.
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Weak and strong coupling of a quantum emitter with a meta–surface
Auteur(s): Felbacq D.
(Document sans référence bibliographique) Texte intégral en Openaccess : 
Ref HAL: hal-01086129_v1
Ref Arxiv: 1411.6373
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé: Meta–surfaces are the bidimensional analogue of metamaterials. They are made on resonant elements periodically disposed on a surface. They have the ability of controlling the polarization of light and to generalized refraction laws as well. They have also been used to enhance the generation of the second harmonic. It seems however that their near-field properties have not been investigated. In this work, the coupling of an emitter with a meta– surface made of a periodic set of resonant linear dipoles was studied. Bloch surface modes localized on the meta–surface exist due the resonance of the dipoles. The strong coupling regime with a emitter can be reached when the Bohr frequency of the emitter is in resonance with the Bloch modes of the meta-surface.
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Plasmon amplification by strong coupling in a layered structure
Auteur(s): Castanie A., Guizal B., Antezza M., Felbacq D.
(Article) Publié:
Proceedings Of Spie, The International Society For Optical Engineering, vol. 8808 p.88081K (2013)
Texte intégral en Openaccess :
Ref HAL: hal-02964425_v1
DOI: 10.1117/12.2029606
Exporter : BibTex | endNote
Résumé: A layered waveguide supported hybrid modes between a surface plasmon and a confined guided mode is studied. The condition for the strong coupling regime are described. The Green function is obtained and decomposed along the continuous and discrete spectrum.
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Collective resonant modes of a meta-surface
Auteur(s): Felbacq D. , Rousseau E., Kling Emmanuel
(Article) Publié:
Journal Of Nanophotonics, vol. 8 p.083987 (2014)
Texte intégral en Openaccess :
Ref HAL: hal-01333443_v1
Ref Arxiv: 1312.4273
DOI: 10.1117/1.JNP.8.083987
WoS: 000336782200002
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
10 Citations
Résumé: A periodic layer of resonant scatterers is considered in the dipolar approximation. An asymptotic expression for the field diffracted is given in terms of an impedance operator. It is shown that surface Bloch modes appear as a collective effect due to the resonances of the scatterers.
Commentaires: 9 pages, 7 figures, extended paper from SPIE Optics+Photonics, Nanostructured Thin Films VI;submitted to Journal of Nanophotonics
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Chaos and Diffusion in periodic structures
Auteur(s): Rousseau E., Felbacq D., Cassabois G.
Conférence invité: International Workshop on the Physics of Excitons (Varadero, CU, 2013-03-30)
Ref HAL: hal-01241963_v1
Exporter : BibTex | endNote
Résumé: For some conditions, we show that light propagation in perfectly periodic structures can be chaotic. Then we show that light motion is then better described by a diffusion process. We also show that the mean-square distance increase faster than linearly with time characterizing a superdiffusion process.
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Spatial dispersion effects in the low-frequency behavior of metamaterials
Auteur(s): Felbacq D.
Conférence invité: Days on Diffraction (Saint-Petersbourg, RU, 2013-05-26)
Ref HAL: hal-00807704_v1
Exporter : BibTex | endNote
Résumé: The collective behavior of resonant scatterers is investigated in the low frequency regime. Evidences of a strong spatial dispersion are given.
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Strong coupling between photons and plasmon-polaritons
Auteur(s): Felbacq D., Castanie A., Guizal B.
Conférence invité: International Conference on Transparent Networks (, ES, 2013-06-23)
Résumé: We study the
effect of confinement on surface plasmons in a planar cavity with a wall coated with a lossy
metal as well as with two walls coated with a lossy metal. The dispersion curves are studied
in details and explicit relations are obtained locally for the first case. It is shown that modes
strongly concentrated at the air-metal interface can be obtained. Finally, we discuss the modes
of the lossy waveguide, in particular their completeness.
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