100 citations · 438 across the 19 of their papers we have counts for
19 papers
Multi-wavelength UV Upconversion in Lanthanides assisted by Photonic Crystals
Damien Rinnert, Emmanuel Drouard, Antonio Pereira +6
Upconversion luminescence consists of the absorption of low-energies photons followed by the emission of a higher energy photon. The process has mainly been studied in lanthanides…
Homogeneous All-Inorganic Perovskite Films via High-Pressure Recrystallization
Asma Miled, Trong Tam Nguyen, Anh Vui Nguyen +13
Metal halide perovskites are promising materials for optoelectronic applications owing to their outstanding optical and electronic properties. Among them, all-inorganic perovskites…
Tailoring Flatband Dispersion in Bilayer Moiré Photonic Crystals
Chirine Saadi, Sébastien Cueff, Lydie Ferrier +6
In this study, we experimentally investigate the photonic dispersion in one-dimensional moiré structures formed by stacking two photonic crystal slabs with slightly different perio…
Long-range ballistic propagation of 80-excitonic-fraction polaritons in a perovskite metasurface at room temperature
Nguyen Ha My Dang, Simone Zanotti, Emmanuel Drouard +6
Exciton-polaritons, hybrid light-matter elementary excitations arising from the strong coupling regime between excitons in semiconductors and photons in photonic nanostructures, of…
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…
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…
Magic configurations in Moiré Superlattice of Bilayer Photonic crystal: Almost-Perfect Flatbands and Unconventional Localization
Dung Xuan Nguyen, Xavier Letartre, Emmanuel Drouard +3
We investigate the physics of photonic band structures of the moiré patterns that emerged when overlapping two uni-dimensional (1D) photonic crystal slabs with mismatched periods.…
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…
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-…
Micrometer-Thin Crystalline-Silicon Solar Cells Integrating Numerically Optimized 2-D Photonic Crystals
V. Depauw, X. Meng, O. El Daif +7
A 2-D photonic crystal was integrated experimentally into a thin-film crystalline-silicon solar cell of 1-μm thickness, after numerical optimization maximizing light absorption in…
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…
Absorbing photonic crystals for thin film photovoltaics
O. El Daif, E. Drouard, G. Gomard +9
The absorption of thin hydrogenated amorphous silicon layers can be efficiently enhanced through a controlled periodic patterning. Light is trapped through coupling with photonic B…
Absorption enhancement in amorphous silicon photonic crystals for thin film photovoltaic solar cells
Ounsi El Daif, Emmanuel Drouard, Yeonsang Park +8
We report on very high enhancement of thin layer's absorption through band-engineering of a photonic crystal structure. We realized amorphous silicon (aSi) photonic crystals, where…