Giant reflection band and anomalous negative transmission in a resonant dielectric grating slab: Application to a planar cavity (Articolo in rivista)

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  • Giant reflection band and anomalous negative transmission in a resonant dielectric grating slab: Application to a planar cavity (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.86.045301 (literal)
Alternative label
  • Pilozzi Laura; Schiumarini Donatella; Tomassini Norberto; D'Andrea Andrea (2012)
    Giant reflection band and anomalous negative transmission in a resonant dielectric grating slab: Application to a planar cavity
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pilozzi Laura; Schiumarini Donatella; Tomassini Norberto; D'Andrea Andrea (literal)
Pagina inizio
  • 045301 (literal)
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  • http://link.aps.org/doi/10.1103/PhysRevB.86.045301 (literal)
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  • 86 (literal)
Rivista
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  • 13 (literal)
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  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Istituto dei Sistemi Complessi, CNR, C.P. 10, Monterotondo Stazione, Roma I-00015, Italy (literal)
Titolo
  • Giant reflection band and anomalous negative transmission in a resonant dielectric grating slab: Application to a planar cavity (literal)
Abstract
  • The fundamental optical effects that are the basis of the giant reflection band and anomalous negative transmission in a self-sustained rectangular dielectric grating slab in p polarization and for incidence angle not very far from the Brewster's angle of the equivalent slab are investigated. Notice that the self-sustained dielectric grating slab is the simplest system that, due to the Bragg diffraction, can show both of the former optical effects. A systematic study of its optical response is performed by an analytical exact solution of the Maxwell equations for a general incidence geometry. At variance with the well-known broad reflection bands in high-contrast dielectric grating slabs in the sub-wavelength regime, obtained by the destructive interference between the traveling fundamental wave and the first diffracted wave (a generalization of the so-called second kind Wood's anomalies), the giant reflection band is a subtle effect due to the interplay among the traveling fundamental wave and the first quasiguided diffracted one, as well as among the higher in-plane wave-vector components of the evanescent/divergent waves. To better describe this effect we compare the optical response of the self-sustained high-contrast dielectric grating slab with a system composed of an equivalent homogeneous slab with a thin rectangular high-contrast dielectric grating engraved in one of the two surfaces, usually taken as a prototype for the generation of second kind Wood's anomalies. Finally, the electromagnetic field confinement in a patterned planar cavity, where the mirrors are two self-sustained rectangular dielectric grating slabs, is briefly discussed. (literal)
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