| People | Locations | Statistics |
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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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Deparis, Olivier
University of Namur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Unsupervised topological analysis of polarized light microscopy
- 2023Enhanced quantitative birefringence imaging supported by unsupervised topological analysis of polarized light microscopy
- 2023Secondary ion mass spectrometry, a powerful tool for revealing ink formulations and animal skins in medieval manuscriptscitations
- 2020UV scattering by pores in avian eggshellscitations
- 2020Scattering of ultraviolet light by avian eggshellscitations
- 2019Growth dynamics and light scattering of gold nanoparticles in situ synthesized at high concentration in thin polymer filmscitations
- 2019Gold nanoparticles growing in a polymer matrix : what can we learn from imaging ellipsometry ?
- 2018Scattering analysis, imaging ellipsometry and reflectivity of gold nanoparticles growing in a polymer matrix
- 2018Reflectivity, imaging ellipsometry and scattering analysis of gold nanoparticles growing in a polymer matrix
- 2016ZnO quantum dots decorated 3DOM TiO 2 nanocomposites:Symbiose of quantum size effects and photonic structure for highly enhanced photocatalytic degradation of organic pollutantscitations
- 2016ZnO quantum dots decorated 3DOM TiO2 nanocompositescitations
- 2015Optimized absorption of solar radiations in nano-structured thin films of crystalline silicon via a genetic algorithmcitations
- 2015Linking optical properties and nanostructure of NiCrOx Cermet nanocomposite for solar thermal application
- 2012Plasmonic device using backscattering of light for enhanced gas and vapour sensingcitations
- 2011Light coupling and enhanced backscattering in layered plasmonic nanocompositescitations
- 2010Leaky-modes excitation in thermally poled nanocomposite glass and their exploitation for saturable absorption
- 2010Poling-assisted fabrication of plasmonic nanocomposite devices in glasscitations
- 2007Photon pair source based on parametric fluorescence in periodically poled twin-hole silica fibercitations
- 2007Photon pair source based on parametric fluorescence in periodically poled twin-hole silica fiber
- 2006Poling-assisted bleaching of soda-lime float glasses containing silver nanoparticles with a decreasing filling factor across the depthcitations
- 2006Refractive index engineering in glass containing spherical silver nanoparticles using dc electric field
- 2005Electric field-assisted formation of percolated silver nanolayers inside glasscitations
- 2005Evolution of poling-assisted bleaching of metal-doped nanocomposite glass with poling conditionscitations
- 2004Poling-assisted bleaching of metal-doped nanocomposite glasscitations
Places of action
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article
Light coupling and enhanced backscattering in layered plasmonic nanocomposites
Abstract
Peculiar enhanced backscattering of light as well as selective vapor sensing were recently observed in a layered plasmonic nanocomposite which consisted of gold nanospheres randomly distributed in a sol-gel glass thin film on top of a soda-lime glass substrate, including a buried leaky waveguide. In order to understand the underlying physical mechanisms, we performed three-dimensional transfer-matrix numerical simulations and calculated the reflectance in both backward and specular directions as functions of the incidence angle. First, assuming a layered periodic particle arrangement, we confirmed that backscattering took place at grazing incidence if the spatial period in the layers was chosen within an optimal range, in agreement with theoretical predictions. Then, using a pseudo-random particle arrangement to describe the actual nanocomposite, we revealed that strong backscattering could nevertheless persist for specific particle distributions, in spite of their randomness. This behavior was tentatively explained by putting backscattering in relation with the particle interdistance statistics. Finally, we showed that backscattered reflectance was much more sensitive than specular reflectance to the adsorption of water vapor either on the surface or inside the likely porous structure of the glass host.