130 citations · 529 across the 22 of their papers we have counts for
17 papers · 1 filter
Nanoimprinted Exciton-Polaritons Metasurfaces: Cost-Effective, Large-Scale, High Homogeneity, and Room Temperature Operation
Nguyen Ha My Dang, Paul Bouteyre, Gaëlle Trippé-Allard +5
Exciton-polaritons represent a promising platform that combines the strengths of both photonic and electronic systems for future optoelectronic devices. However, their application…
Direct Observation of Exceptional Points in Photonic Crystal by Cross-Polarization Imaging in Momentum Space
Viet Anh Nguyen, Viet Hoang Le, Loïc Malgrey +8
This study explores exceptional points (EPs) in photonic crystals (PhCs) and introduces a novel method for their single-shot observation. Exceptional points are spectral singularit…
Taming Friedrich-Wintgen interference in resonant metasurface: vortex laser emitting at on-demand tilted-angle
Raphael Mermet-Lyaudoz, Clémentine Symond, Florian Berry +7
Friedrich-Wintgen (FW) interference is an atypical coupling mechanism that grants loss exchange between leaky resonances in non-Hermitian classical and quantum systems. Intriguingl…
Light Management in Perovskite Photovoltaic Solar Cells: a perspective
Florian Berry, Raphaël Mermet-Lyaudoz, Jose Maria Cuevas Davila +7
Light Management (LM) is essential for metal-halide perovskite solar cells in their race for record performance. In this review, criteria on materials, processes and photonic engin…
Realization of room temperature polaritonic vortex in momentum space with hybrid Perovskite metasurface
Nguyen Ha My Dang, Simone Zanotti, Céline Chevalier +9
Exciton-polaritons are mixed light-matter excitations that result from the strong coupling regime between an active excitonic material and photonic resonances. Harnessing these hyb…
Directing random lasing emission using cavity exciton-polaritons
Paul Bouteyre, Hai Son Nguyen, Jean-Sébastien Lauret +9
Random lasing is an intriguing phenomenon occurring in disordered structures with optical gain. In such lasers, the scattering of light provides the necessary feedback for lasing a…
Tailoring dispersion of room temperature exciton-polaritons with perovskite-based subwavelength metasurfaces
Nguyen Ha My Dang, Dario Gerace, Emmanuel Drouard +6
Exciton-polaritons, elementary excitations arising from the strong coupling regime between photons and excitons in insulators or semiconductors, represent a promising platform for…
Unified Weak-to-Strong Coupling Transitions and Radiation Interference Induced by Vertical-Symmetry Breaking in Photonic Crystal Slabs
Huy Hoang Chu, Raphael Mermet-Lyaudoz, Florian Dubois +10
Vertical-symmetry breaking provides a versatile means of coupling leaky photonic-crystal resonances that are otherwise protected by opposite out-of-plane parity. Here, we develop a…
Room temperature cavity polaritons with 3D hybrid perovskite - Towards low-cost polaritonic devices
Paul Bouteyre, Hai Son Nguyen, Jean-Sébastien Lauret +9
Hybrid halide perovskites are now considered as low-cost materials for contemporary research in photovoltaics and nanophotonics. In particular, because these materials can be solut…
Symmetry Breaking in Photonic Crystals: On-Demand Dispersion from Flatband to Dirac Cones
Hai Son Nguyen, Florian Dubois, Thierry Deschamps +6
We demonstrate that symmetry breaking opens a new degree of freedom to tailor the energy-momentum dispersion in photonic crystals. Using a general theoretical framework in two illu…
Inhibition of light emission in a 2.5D photonic structure
Romain Peretti, Christian Seassal, Pierre Viktorovich +1
We analyse inhibition of emission in a 2.5D photonic structures made up a photonic crystal (PhC) and Bragg mirrors using FDTD simulations. A comparison is made between an isolated…
Absorption enhancement in photonic crystal thin films by pseudo disordered perturbations
Romain Peretti, Guillaume Gomard, Loïc Lalouat +2
The effects resulting from the introduction of a controlled perturbation in a single pattern membrane on its absorption are first studied and then analyzed on the basis of band fol…
Blue light absorption enhancement based on vertically channelling modes in nano-holes arrays
Guillaume Gomard, Romain Peretti, Ségolène Callard +6
We investigate the specific optical regime occurring at short wavelengths, in the high absorption regime, in silicon thin-films patterned by periodically arranged nano-holes. Near-…
Down Converter Device Combining Rare-Earth Doped Thin Layer and Photonic Crystal for c-Si Based Solar Cell
Thierry Deschamps, Emmanuel Drouard, Romain Peretti +7
The aim of the study is to develop ultra-compact structures enabling an efficient conversion of single high energy photon (UV) to two lower energy photons (IR). The proposed struct…
Absorption control in pseudodisordered photonic-crystal thin film
Romain Peretti, Guillaume Gomard, Loïc Lalouat +2
The positive effects of various perturbations introduced in a bidimensional photonic-crystal patterned membrane on its integrated absorption are investigated numerically and theore…
Modal approach for tailoring the absorption in a photonic crystal membrane
Romain Peretti, Guillaume Gomard, Christian Seassal +2
In this paper, we propose a method for tailoring the absorption in a photonic crystal membrane. For that purpose, we first applied Time Domain Coupled Mode Theory to such a subwave…
Optically optimal wavelength-scale patterned ITO/ZnO composite coatings for thin film solar cells
Antoine Moreau, Rafik Smaali, Emmanuel Centeno +1
A methodology is proposed for finding structures that are, optically speaking, locally optimal : a physical analysis of much simpler structures is used to constrain the optimizatio…