http://www.cnr.it/ontology/cnr/individuo/prodotto/ID300879
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)
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- Rizza, Carlo; Di Falco, Andrea; Ciattoni, Alessandro (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
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- 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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