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(89) Production(s) de GUIZAL B.
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RESONANT HOMOGENIZATION OF A DIELECTRIC METAMATERIAL 
Auteur(s): Felbacq D., Guizal B., Bouchitte G., Bourel C.
Conference: 4th Workshop on Metamaterials and Special Materials for Electromagnetic Application and TLC (Naples, IT, 2008-12-18)
Actes de conférence: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, vol. 51 p.2695-2701 (2009)
Ref HAL: hal-00437968_v1
Exporter : BibTex | endNote
Résumé: We investigate numerically and theoretically the homageneous properties of a metamaterial made of nanorods with a high dielectric constant. The rods have inner resonances leading to an effective magnetic behavior. The influence of various parameters, such as the wavelength, the angle of incidence, and the filling ratio is quantified by means of rigorous numerical computations. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2695-2701, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24717
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Reformulation of the eigenvalue problem in the Fourier modal method with spatial adaptive resolution
Auteur(s): Guizal B., Yala H., Felbacq D.
(Article) Publié:
Optics Letters, vol. 34 p.2790-2792 (2009)
Ref HAL: hal-00437969_v1
PMID 19756106
DOI: 10.1364/OL.34.002790
WoS: 000270114800031
Exporter : BibTex | endNote
30 Citations
Résumé: The Fourier modal method equipped with the concept of adaptive spatial resolution (FMMASR) is shown to be naturally more stable than the classical Fourier modal method toward spurious modes that appear with metallic structures. It is demonstrated that this stability can be further improved by reformulating the eigenvalue problem of the FMMASR. (C) 2009 Optical Society of America
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Fourier modal method with spatial adaptive resolution for structures comprising homogeneous layers
Auteur(s): Yala Hakim, Guizal B., Felbacq D.
(Article) Publié:
Journal Of The Optical Society Of America A, vol. 26 p.2567-2570 (2009)
Ref HAL: hal-00808393_v1
PMID 19956325
DOI: 10.1364/JOSAA.26.002567
WoS: 000272349500012
Exporter : BibTex | endNote
8 Citations
Résumé: A numerical improvement of the Fourier modal method with adaptive spatial resolution is obtained. It is shown that the solutions of all the eigenvalue problems corresponding to homogeneous regions can be deduced straightforwardly from the solution of one of these problems. Numerical examples demonstrate that computation time saving can be substantial.
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Effective properties of membrane photonic crystals
Auteur(s): Felbacq D., Bouchitte Guy, Guizal B., Bourel Christophe
(Article) Publié:
Journal Of Nanophotonics, vol. 3 p.031507 (2009)
Ref HAL: hal-00385872_v1
DOI: 10.1117/1.3097796
WoS: 000272328600008
Exporter : BibTex | endNote
7 Citations
Résumé: Wave propagation in thin nanostructured films in the low frequency regime was studied. By means of a two-scale analysis, the medium can be homogenized, i.e. described by effective electromagnetic parameters. The effective permeability and permittivity were obtained from a set of partial differential equations. A numerical approach based on the Fourier Modal Method was devised in order to solve these equations.
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Theoretical study off all-dielectric rod-type metamaterials: a route towards optical frequencies
Auteur(s): Vynck Kevin, Felbacq D., Centeno Emmanuel, Guizal B., Cassagne D.
Conference: PECS VIII ~ The 8th International Photonic & Electromagnetic Crystal Structures Meeting (Sydney, AU, 2009-04-05)
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All-dielectric rod-type metamaterials at optical frequencies
Auteur(s): Vynck Kevin, Felbacq D., Centeno Emmanuel, Cabuz A., Cassagne D., Guizal B.
(Article) Publié:
Physical Review Letters, vol. 102 p.133901 (2009)
Texte intégral en Openaccess : 
Ref HAL: hal-00385881_v1
PMID 19392353
DOI: 10.1103/PhysRevLett.102.133901
WoS: 000264888600019
Exporter : BibTex | endNote
189 Citations
Résumé: Light propagation in all-dielectric rod-type metamaterials is studied theoretically. The electric and magnetic dipole moments of the rods are derived analytically in the long-wavelength limit. The effective permittivity and permeability of a square lattice of rods are calculated by homogenizing the corresponding array of dipoles. The role of dipole resonances in the optical properties of the rod array is interpreted. This structure is found to exhibit a true left-handed behavior, confirming previous experiments [L. Peng et al., Phys. Rev. Lett. 98, 157403 (2007)]. A scaling analysis shows that this effect holds at optical frequencies and can be obtained by using rods made, for example, of silicon.
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What is the direction followed by a beam in a photonic medium?
Auteur(s): Felbacq D., Guizal B.
(Article) Publié:
Optics Letters, vol. 33 p.998-1000 (2008)
Résumé: The direction of propagation followed by a monochromatic beam in a periodic structure is generally deduced from the isofrequency diagram, which is related to the group velocity. However, the group velocity is the derivative of omega with respect to the wavenumber, while the behavior of the beam should depend on omega only. In the subwavelength regime, a method for choosing the relevant branch of the isofrequency diagram and relying on the behavior of the system at omega only is described. (C)d 2008 Optical Society of America.
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