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dc.contributor.authorRizza, Carlo
dc.contributor.authorDi Falco, Andrea
dc.contributor.authorCiattoni, Alessandro
dc.date.accessioned2014-01-10T11:01:01Z
dc.date.available2014-01-10T11:01:01Z
dc.date.issued2011-11
dc.identifier.citationRizza , C , Di Falco , A & Ciattoni , A 2011 , ' Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies ' , Applied Physics Letters , vol. 99 , no. 22 , 221107 . https://doi.org/10.1063/1.3665414en
dc.identifier.issn0003-6951
dc.identifier.otherPURE: 17104813
dc.identifier.otherPURE UUID: 61a1973f-f53d-4a69-ad16-949a5e7d1c93
dc.identifier.otherWOS: 000298244500007
dc.identifier.otherScopus: 82955194827
dc.identifier.otherORCID: /0000-0002-7338-8785/work/57821773
dc.identifier.urihttps://hdl.handle.net/10023/4344
dc.description.abstractWe 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.
dc.format.extent3
dc.language.isoeng
dc.relation.ispartofApplied Physics Lettersen
dc.rightsCopyright 2011, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, Vol 99, Issue 22, and may be found at: http://scitation.aip.org/content/aip/journal/apl/99/22/10.1063/1.3665414en
dc.subjectPermittivityen
dc.subjectSilveren
dc.subjectDielectricsen
dc.subjectOptical pumpingen
dc.subjectEffective medium theoryen
dc.titleGain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequenciesen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1063/1.3665414
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/I004602/1en


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