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Université de Provence - Aix-Marseille I Hyper Articles en Ligne |
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Université de Provence - Aix-Marseille I Hyper Articles en Ligne |
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| HAL : hal-00374831, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Optics express 17, 8 (2009) 6770-6781 |
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| Absorption of light by extremely shallow metallic gratings: metamaterial behavior |
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| E. Popov 1Stefan Enoch 1 |
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| (09/04/2009) |
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| Extremely shallow lamellar metallic gratings are shown to totally absorb incident light inside a wide angular interval. The full absorption still holds at the homogeneization limit when the period tends toward zero. It is shown that a lamellar grating, illuminated in normal incidence and in transerve magnetic polarization with a period lower than 1/100 of the incident wavelength behaves like a dielectric with a high refractive index. The full absorption is then not due to the excitation of surface plasmon but either to Fabry-Perot resonance or Brewster effect, depending on the corrugated layer thickness. |
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| 1 : | Institut FRESNEL (IF) |
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CNRS : UMR6133 – Université de Provence - Aix-Marseille I – Université Paul Cézanne - Aix-Marseille III – Ecole Centrale de Marseille |
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| Domaine | : | Sciences de l'ingénieur/Optique / photonique |
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| Diffraction and gratings – Optics at surfaces – Surface plasmons |
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| hal-00374831, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00374831 | |
| oai:hal.archives-ouvertes.fr:hal-00374831 | |
| Contributeur : Nicolas Bonod | |
| Soumis le : Jeudi 9 Avril 2009, 18:47:00 | |
| Dernière modification le : Mardi 29 Septembre 2009, 13:13:49 | |
