Search Results - "Lalouat, Loic"
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Design rules for net absorption enhancement in pseudo-disordered photonic crystal for thin film solar cells
Published in Optics express (21-03-2016)“…The role of pseudo-disordered photonic crystals on the absorption efficiency of simplified thin film crystalline silicon solar cells is presented and…”
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Binary coded patterns for photon control using necklace problem concept
Published in Optics express (25-01-2016)“…Pseudo-disordered structures enable additional design freedom for photon management. However, the optimization and interpretation is challenging when the large…”
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Photonic nanostructures for advanced light trapping in thin crystalline silicon solar cells
Published in Physica status solidi. A, Applications and materials science (01-01-2015)“…We report on the fabrication, integration, and simulation, both optical and optoelectrical, of two‐dimensional photonic nanostructures for advanced light…”
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Influence of dimensional fluctuations on the optical coupling between nanobeam twin cavities
Published in Physical review. B, Condensed matter and materials physics (26-06-2012)“…In this paper, we study the influence of fabrication uncertainties on silicon-on-insulator optical nanosystems performances. The considered structure consists…”
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Ultrathin Epitaxial Silicon Solar Cells with Inverted Nanopyramid Arrays for Efficient Light Trapping
Published in Nano letters (14-09-2016)“…Ultrathin c-Si solar cells have the potential to drastically reduce costs by saving raw material while maintaining good efficiencies thanks to the excellent…”
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Absorption control in pseudodisordered photonic-crystal thin films
Published in Physical review. A, Atomic, molecular, and optical physics (22-11-2013)Get full text
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Subwavelength imaging of light confinement in high- Q /small- V photonic crystal nanocavity
Published in Applied physics letters (17-03-2008)“…The optical near field of a high- Q and ultrasmall volume photonic crystal nanocavity is visualized with a subwavelength resolution by using a scanning…”
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Lower bound for the spatial extent of localized modes in photonic-crystal waveguides with small random imperfections
Published in Scientific reports (01-06-2016)“…Light localization due to random imperfections in periodic media is paramount in photonics research. The group index is known to be a key parameter for…”
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Optical near-field microscopy of light focusing through a photonic crystal flat lens
Published in Physical review letters (15-08-2008)“…We report here the direct observation by using a scanning near-field microscopy technique of the light focusing through a photonic crystal flat lens designed…”
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Optical quasicylindrical waves at dielectric interfaces
Published in Physical review. B, Condensed matter and materials physics (25-02-2011)“…Much effort has been recently devoted to the study of the electromagnetic field launched on a metal-dielectric interface by one-dimensional (1D) subwavelength…”
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Tuning Temperature and Size of Hot Spots and Hot-Spot Arrays
Published in Small (Weinheim an der Bergstrasse, Germany) (17-01-2011)“…By using scanning thermal microscopy, it is shown that nanoscale constrictions in metallic microwires deposited on an oxidized silicon substrate can be tuned…”
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Very high sustainable forward current densities on 4H-SiC p-n junctions formed by VLS localized epitaxy of heavily Al-doped p++ emitters
Published in 2016 European Conference on Silicon Carbide & Related Materials (ECSCRM) (15-05-2017)“…This study deals with the electrical characterization of PiN diodes fabricated on a 4°offaxis 4H-SiC n + substrate with a ñ epilayer (1×10 16 cm -3 / 10 μm)…”
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Conference Proceeding -
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An air-slotted nanoresonator relying on coupled high Q small V Fabry-Perot nanocavities
Published in Applied physics letters (22-06-2009)“…We study here the lateral evanescent coupling between photonic crystals cavities. The structure consists in two identical monomode Fabry-Perot nanocavities,…”
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Near-field modal microscopy of subwavelength light confinement in multimode silicon slot waveguides
Published in Applied physics letters (22-12-2008)“…Silicon-on-insulator slot waveguides are studied by scanning near-field optical microscopy. Images of the standing wave pattern were established experimentally…”
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A near-field actuated optical nanocavity
Published in Optics express (07-01-2008)“…We demonstrate here that switching and tuning of a nanocavity resonance can be achieved by approaching a sub-micrometer tip inside its evanescent near-field…”
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Pseudo-disordered structures for light trapping improvement in mono-crystalline Si thin-films
Published in Solar energy materials and solar cells (01-01-2017)“…Thin film solar cells may exhibit high conversion efficiencies provided their active material exhibits a high quality, like in the case of crystalline silicon,…”
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Micrometer-Thin Crystalline-Silicon Solar Cells Integrating Numerically Optimized 2-D Photonic Crystals
Published in IEEE journal of photovoltaics (01-01-2014)“…A 2-D photonic crystal was integrated experimentally into a thin-film crystalline-silicon solar cell of 1-μm thickness, after numerical optimization maximizing…”
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Extraordinary tuning of a nanocavity by a near-field probe
Published in Photonics and nanostructures (01-07-2011)“…► We observed an anomalous interaction between a probe and a photonic 1D nanocavity. ► We compare the measurements with previous reported “normal” behavior. ►…”
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Near-field optical characterization of interacting and non-interacting gold nanoparticles embedded in a silica thin film
Published in Optics communications (01-06-2011)“…By near-field optics, we characterized the local optical properties of clusters of gold nanoparticles randomly distributed under a 50 nm-thick SiO 2 thin film…”
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