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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Di Falco, Andrea
University of St Andrews
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2021Effective permittivity of co-evaporated metal-organic mixed filmscitations
- 2017Enhanced nonlinear effects in pulse propagation through epsilon-near-zero mediacitations
- 2017Enhanced nonlinear refractive index in ε-near-zero materialscitations
- 2016Enhanced nonlinear refractive index in ε -near-zero materialscitations
- 2016Optically induced metal-to-dielectric transition in Epsilon-Near-Zero metamaterialscitations
- 2016Optothermal nonlinearity of silica aerogelcitations
- 2016Enhanced nonlinear effects in pulse propagation through epsilon-near-zero mediacitations
- 2014Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequenciescitations
- 2011Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequenciescitations
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article
Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies
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.