Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies (Articolo in rivista)

Type
Label
  • Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3665414 (literal)
Alternative label
  • Rizza, Carlo; Di Falco, Andrea; Ciattoni, Alessandro (2011)
    Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rizza, Carlo; Di Falco, Andrea; Ciattoni, Alessandro (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 22 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Insubria; Consiglio Nazionale delle Ricerche (CNR); University of St Andrews (literal)
Titolo
  • Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies (literal)
Abstract
  • We have fabricated a nano-laminate by alternating metal and gain medium layers, the gain dielectric consisting of a polymer incorporating optically pumped dye molecules. From standard reflection-transmission experiments, we show that, at a visible wavelength, both the real and the imaginary parts of the permittivity epsilon(parallel to) attain very small values and we measure, at lambda = 604 nm, vertical bar epsilon(parallel to)vertical bar = 0.04 which is 21.5% smaller than its value in the absence of optical pumping. Our investigation thus proves that a medium with a permittivity with very small modulus, a key condition promising efficient subwavelength optical steering, can be actually synthesized. (C) 2011American Institute of Physics. [doi:10.1063/1.3665414] (literal)
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