Terahertz optically tunable dielectric metamaterials without microfabrication (Articolo in rivista)

Type
Label
  • Terahertz optically tunable dielectric metamaterials without microfabrication (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1364/OL.38.001307 (literal)
Alternative label
  • Carlo Rizza,1,2 Alessandro Ciattoni,2, Lorenzo Columbo,1,3 Massimo Brambilla,3,4 and Franco Prati1,5 (2013)
    Terahertz optically tunable dielectric metamaterials without microfabrication
    in Optics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carlo Rizza,1,2 Alessandro Ciattoni,2, Lorenzo Columbo,1,3 Massimo Brambilla,3,4 and Franco Prati1,5 (literal)
Pagina inizio
  • 1307 (literal)
Pagina fine
  • 1309 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84876537256&partnerID=q2rCbXpz (literal)
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  • 38 (literal)
Rivista
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  • 8 (literal)
Note
  • Scopu (literal)
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  • 1 Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, Como I-22100, Italy 2 Consiglio Nazionale delle Ricerche, CNR-SPIN, via Vetoio 1, Coppito L'Aquila I-67100, Italy 3 Consiglio Nazionale delle Ricerche, CNR-IFN, via Amendola 173, Bari I-70126, Italy 4 Dipartimento Interateneo di Fisica, Politecnico di Bari, via Amendola 173, Bari I-70126, Italy 5 CNISM, Research Unit of Como, via Valleggio 11, Como I-22100, Italy (literal)
Titolo
  • Terahertz optically tunable dielectric metamaterials without microfabrication (literal)
Abstract
  • We theoretically investigate the terahertz (THz) dielectric response of a semiconductor slab hosting a tunable grating photogenerated by the interference of two tilted infrared (IR) plane waves. In the case where the grating period is much smaller than the THz wavelength, we numerically evaluate the ordinary and extraordinary component of the effective permittivity tensor by resorting to electromagnetic full-wave simulation coupled to the dynamics of charge carriers excited by IR radiation. We show that the photo-induced metamaterial optical response can be tailored by varying the grating and it ranges from birefringent to hyperbolic to anisotropic negative dielectric without resorting to microfabrication. © 2013 Optical Society of America. (literal)
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