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Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies
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dc.contributor.author | Rizza, Carlo | |
dc.contributor.author | Di Falco, Andrea | |
dc.contributor.author | Ciattoni, Alessandro | |
dc.date.accessioned | 2014-01-10T11:01:01Z | |
dc.date.available | 2014-01-10T11:01:01Z | |
dc.date.issued | 2011-11 | |
dc.identifier | 17104813 | |
dc.identifier | 61a1973f-f53d-4a69-ad16-949a5e7d1c93 | |
dc.identifier | 000298244500007 | |
dc.identifier | 82955194827 | |
dc.identifier.citation | Rizza , 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/10.1063/1.3665414 | en |
dc.identifier.issn | 0003-6951 | |
dc.identifier.other | ORCID: /0000-0002-7338-8785/work/57821773 | |
dc.identifier.uri | https://hdl.handle.net/10023/4344 | |
dc.description.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. | |
dc.format.extent | 3 | |
dc.format.extent | 519524 | |
dc.language.iso | eng | |
dc.relation.ispartof | Applied Physics Letters | en |
dc.subject | Permittivity | en |
dc.subject | Silver | en |
dc.subject | Dielectrics | en |
dc.subject | Optical pumping | en |
dc.subject | Effective medium theory | en |
dc.title | Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1063/1.3665414 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | EP/I004602/1 | en |
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