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Micro-LEDs are the basic constituent of high-resolution micro-displays. But, when of micrometer size, the GaN based µ-LEDs have reduced efficiencies because of detrimental edge effects associated to the etching step in their fabrication. In PEGADIS, we propose a solution to this issue, based on the

The storage and preservation of large amounts of data (Big Data) constitute a crucial technological challenge linked to the evolution of data processing, which requires the development of innovative molecular materials. The present multidisciplinary 3 Dimensions-Optical Data Storage (3D-ODS) project

RF signals are everywhere in today’s connected society. Surface Acoustic Wave (SAW) filters are widely used to distinguish between signals at different frequencies. Unfortunately, the performance of SAW filters drops above 5 GHz. Thin films of epitaxial LiNbO3 on sapphire host “guided” AW. These mod

Owning to their indirect band structure, group-IV materials were traditionally considered as very poor optical sources, unable to produce laser emission. Very recently, this paradigm shifted with experimental demonstrations of direct band gap alignment in both tensile-strained pure germanium and ger

Colloidal perovskites have attracted attention for potential use in solid-state lighting and single photon emitters. Halide perovskite quantum dots (QDs) offer a cheap and scalable material option for such applications due to their high defect tolerance and high luminescence quantum yield. Despite t

Metasurfaces based on plasmonic nanoparticles, which collect and concentrate light into subwavelength volumes, have enabled a whole new family of planar optical devices including light sources, energy harvesting systems, light wavefront engineering components, non-linear systems, biosensors and phot

Spintronics devices involve ferromagnetic elements with high switching energies. Contrastingly, the polarization of ferroelectrics can be easily switched by an electric field, at energies typically 1000 times lower. Combined with high spin-orbit coupling elements, ferroelectrics have also a natural

Emerging communication technologies like 5G or Near Field Communication call for voltage tunable ferroelectric (FE) film capacitors to work at higher frequencies or lower voltage, thus requiring the reduction of the FE thickness. Unfortunately, two interface-related phenomena, the FE “dead layer” an

The DALHAI project aims at developing compact all-optical Arithmetic and Logic Units (ALU) exploiting the spatial and spectral distributions of 2D confined plasmons modes in planar cavities tailored in ultrathin Au or Ag crystals. Yet, the optimization of the logic gate output contrast, the definiti

Several use-cases of a wake-up radio can be identified (ultra-low power but small sensitivity or more consumption but better sensitivity). From a general point of view, the interesting parameters are: • Consumption - in nW • Sensitivity (S/N detection threshold) • Frequency band and carrier frequ

The optical properties manipulation of organic compounds currently relies mainly on chemical engineering. Although at the molecular scale the polarizabilities achieved are remarkable, they are poorly transferred to the solid state in real devices which, moreover, suffer from stability over time. SO

The GeSPAD project is devoted to achieve a major breakthrough in the development of the next-generation of Single Photon Avalanche Diodes (SPAD), a high-sensitivity optoelectronic detector with many applications in X-ray tomography, biochemical sensors, DNA/protein microarray scanning, engine/turbin

In the context of spintronics and its applications, manipulating the magnetization at fast rates is a major goal. The SPOTZ project aims to unveil the (sub)picosecond dynamics of the magnetization induced by ultrashort current pulses, and in particular, by spin-orbit torques. Next, magnetization swi

The recent progress of deep neural networks has enabled artificial intelligence (AI) to disrupt many fields, from scientific research to commercial applications. One major concern however is the energy cost of AI, that poses environmental threats and prevents its deployment in embedded systems. Spik

The proposed research aims to investigate both experimentally and theoretically the quantum tunneling enhanced optical harmonic generation in rationally designed plasmonic junctions. The main objectives of the project are: 1. To achieve precise control over the tunneling barrier width of plasmonic n

3D-BEAM-FLEX project aims at demonstrating the self-writing of continuous and flexible single-mode waveguides between VCSELs (Vertical-Cavity Surface-Emitting Laser) arrays and single-mode optical fibers in order to improve the photonic integration of these laser sources in high-speed optical interc

This research project will pave the way to next generation computing architectures relying on hardware accelerators based on silicon photonics (SiPh), phase change materials (PCM) and stochastic computing (SC). Indeed, SiPh, reinforced by PCM for non-volatile functions is key to produce low cost and

The 5th Generation (5G) of communications provides very high-data rates using multiple carrier frequencies simultaneously in the 617MHz to 5GHz band. The main challenge is to carry out a smart aggregation of carriers without increasing power consumption considering the constraints of multi-standards

Hybrid interfaces between nanocrystal (NanoX) perovskite materials and two dimensional (2D) transition dichalcogenides (TMD) hold great promises for the development of smart photodetector devices, for they combine two class of model materials displaying exceptional and complementary opto-electronic

MUPHTA is a 36-month PRCE project that brings together two academic laboratories and a large industrial group to study the fundamental mechanisms of mode coupling and light scattering in few-mode optical fibers (FMFs), candidates for integrating the future high-capacity telecommunications networks u

The ELMAX project aims at studying and exploiting magneto-electric phenomena in fully van der Waals multilayers made by molecular beam epitaxy. The recent discovery of 2D ferromagnets enabled the study of spintronics devices fully made of van der Waals materials. ELMAX will pioneer the study of such

Low-pressure plasmas are widely used to transfer high resolution patterns into functional materials because they offer many advantages (anisotropy, selectivity) compared to wet processes. First introduced to achieve silicon deep etching, cryogenic etching consists in etching materials at very low te

The MetaOnDemand project aims at developing the selective addressing of individual pixel elements composing a metasurface to actively write, erase and reconfigure flat integrated devices in real-time. This original platform will be used to demonstrate the on-demand electrical drawing of metasurface

Whether it is on the surface of a lake, in colour patterns of halos and coronas in the atmosphere, or as fringes in optical or gravitational waves, wave interference is a phenomenon which plays an important role in our everyday life and allows us to address the most complex questions. But what about

Today, a consensus has emerged to say that detection in the terahertz (THz) band [100 GHz – 10 THz] - or millimeter / sub-millimeter wavelength ranges – could help to answer to several important societal issues, such as material detection/identification, non-destructive testing or security imaging.

Major recent progress in photonics, optoelectronics and optomechanics has been enabled by improvements in the quality of low-dimensional materials. Two-dimensional materials (2DM, semiconducting transition metal dichalcogenides (TMD) and graphene) are examples of choice. They display remarkable elec

The microelectronics industry is seeking to develop low-temperature computing infrastructures to reduce their overall power electrical consumption. In some applications, the total energy consumption can be reduced by operating in a cryogenic environment. In this context, MRAM is a leading non-volati

The object of NAC-NIP is to revisit waveguides array in the perspectives of the recent developments in integrated photonics. In particular, the project will focus on systems composed of only a few waveguides that support only a small number of discrete super modes. This contrast with the seminal arr