Polariton excitation in epsilon-near-zero slabs: Transient trapping of slow light (Articolo in rivista)

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Label
  • Polariton excitation in epsilon-near-zero slabs: Transient trapping of slow light (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.87.053853 (literal)
Alternative label
  • Ciattoni, A.a, Marini, A.b, Rizza, C.ac, Scalora, M.d, Biancalana, F.be (2013)
    Polariton excitation in epsilon-near-zero slabs: Transient trapping of slow light
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ciattoni, A.a, Marini, A.b, Rizza, C.ac, Scalora, M.d, Biancalana, F.be (literal)
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  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84878482955&partnerID=q2rCbXpz (literal)
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  • 87 (literal)
Rivista
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  • 5 (literal)
Note
  • Scopu (literal)
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  • a Consiglio Nazionale Delle Ricerche, CNR-SPIN, I-67100 L'Aquila, Italy b Max Planck Institute for the Science of Light, Guenther-Scharowsky-Straße 1, D-91058 Erlangen, Germany c Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11c, I-22100 Como, Italy d Charles M. Bowden Research Center RDMR-WDS-WO, RDECOM, Redstone Arsenal, AL 35898-5000, United States e School of Engineering and Physical Sciences, Heriot-Watt Universityc, Edinburgh, EH14 4AS, United Kingdom (literal)
Titolo
  • Polariton excitation in epsilon-near-zero slabs: Transient trapping of slow light (literal)
Abstract
  • We numerically investigate the propagation of a spatially localized and quasimonochromatic electromagnetic pulse through a slab with a Lorentz dielectric response in the epsilon-near-zero regime, where the real part of the permittivity vanishes at the pulse carrier frequency. We show that the pulse is able to excite a set of virtual polariton modes supported by the slab, with the excitation undergoing a generally slow damping due to absorption and radiation leakage. Our numerical and analytical approaches indicate that in its transient dynamics the electromagnetic field displays the very same enhancement of the field component perpendicular to the slab, as in the monochromatic regime. The transient trapping is inherently accompanied by a significantly reduced group velocity ensuing from the small dielectric permittivity, thus providing an alternative platform for achieving control and manipulation of slow light. © 2013 American Physical Society. (literal)
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