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Chromium-based coatings for lasers – CRUMBLE
The objective of this project is to develop a new coating with saturable absorption and gain medium properties dedicated to telecom applications. This coating is based on YAG: Cr4 + nanocrystals embedded in a sol-gel matrix. The chromium-IV doped YAG is indeed known for its saturable absorption prop
New concept of multi-band "Circulator-Antenna" based on ferrite materia – BISTRAU
Communication systems for civil and military applications have become increasingly complex. They tend to agglomerate multiple standards, which often contradicts the miniaturization requirements of terminals. Two essential elements of RF Front End are the antennas and the circulators placed ahead of
Perovskite SUPERlattices for optical SPIN current generation – SUPERSPIN
Spin currents are the basic building blocks of spintronics, one of the most active and promising field for the development of the next generation of nanoelectronic devices. They are useful, for instance, to realize and sustain oscillating vortices-based sensors and emitters by the use of the so-call
Hybridization between Acoustic Resonance, Magnon and photON in YIG – Harmony
Information technologies are at the cusp of another revolution triggered by the emergence of new generation of wireless telecommunication technologies and the promise of new paradigms through the quantum computer. This development requires the introduction of new materials for post CMOS technologies
High-Tc Josephson parametric amplifier – ARPEJ
The development of high-frequency technologies in the millimeter range (30-300 GHz) opens up many perspectives in various technological fields, in particular that of communication and information processing systems. One of the key elements in the signal processing chain is the amplifier whose charac
Hybrid Chip-Scale Frequency Combs Combining III-V Quantum-Dash Mode-Locked Lasers and High-Q Si3N4 Microresonators – HybridCombs
Chip-scale optical frequency comb generators have the potential to revolutionize many applications in science and industry, comprising high-throughput optical communications using massively parallel wavelength-division multiplexing (WDM), ultra-fast optical ranging and LiDAR, as well as ultrabroadba
Opto-electronic devices enabled by vacuum-field assisted transport – EVEREST
Optoelectronic devices (LEDs, solar cells, lasers, detectors) play an increasingly important role, for fighting climate change or ultrafast data processing. As the operating principles are well known, further improvements are often incremental and limited by material properties. New vistas based on
SOLId state electronics and phoTONIC integration for THz communications – SOLITONIC
Pushed by an urgent need on high-speed wireless connections, THz communications is now on fast track to be a 6G-enabler as a new wireless standard was released (IEEE 802.5.3d) in 2017. Most appealing technologies are i) photonics techniques, enabling highest data-rates and ii) solid-state technologi
New concepts for waveguide micro- and nano-lasers – NEWAVE
This project aims at exploring new operation modes for micro- and nano-lasers for integrated photonics. These are based on polaritonic waveguides (GaN), an "all-in-one" active medium that is very different from usual semiconducting active layers, thus revisiting in depth the laser mechanisms. They p
Optical Reservoir Computing with Hybrid Integrated Devices – ORCHID
Considering the importance of future, high efficiency Artificial Neural Networks (ANN) applications, i.e. in light of the current climate change situation, we are to develop energy efficient solutions for ANN implementations. The specific focus lies on the power consumption of current computer based
Flexible LEDs based on GaN on graphene – FLAGG
The present project aims (i) to apply van der Waals epitaxy on graphene for the development of organized and transferable GaN or InGaN micro-templates of high crystalline quality and (ii) to use these templates for the growth and fabrication of micro-LEDs transferable on flexible substrates. The ini
Scalable Tunneling diodes based on 2D materials – TUNNE2D
The huge increase in today`s information and data communication services imposes higher data rate transmission networks and processing, requiring high frequency (HF) operations. Tunneling devices (TDs) offer potentially superior performance than thermionic-based devices as they do not suffer from li
Self-aligned DNA origamis for information technology – Inforigami
Fabrication of ultra high resoluted nanodevices implies complex alignment steps. In order to limit these alignment steps, we propose to explore a new generic method of nanofabrication based on Directed Self-Assembly of DNA origamis. Such nano-objects exhibit the ability to self-organize (individual
Energy efficient mmW Wireless fixed access – EEMW4FIX
More than one billion homes worldwide still lack a broadband Internet connection. In addition, power consumption related to telecommunication network is constantly increasing following data traffic exponential growth. EEMW4FIX ambition is to offer reliable, high data rate and low-power access to end
Photochromic Organic Materials for Neuromorphic Computing – PHOTOMIC
The goal of PHOTOMIC is to develop and integrate organic materials for all-photonic neuromorphic computing. Our approach is to develop photochromic materials as the active elements of all-optical synapses to be interfaced with semiconductor photonic neurons towards innovative machine learning scheme
Femtosecond spincurrents for ultrafast spintronics – SPINUP
By setting a combination of advanced ultrafast optical approaches, SPINUP has for final objective the direct visualization and understanding of dynamical characteristics of sub-picosecond spincurrent pulses propagation at the nanoscale. The main methodology will be based on the direct spatially- (sm
ElectroLuminsecence of 2D SemiMetals – ELuSeM
The electroluminescence of solids is the realm of semiconductors and related organic materials. In 2019, we discovered that a graphene transistor encapsulated in hexagonal Boron Nitride and submitted to a large bias becomes electroluminescent in the mid-infrared. This device operates in the open a
on Chip nOn cLassical phOton soUrces foR Sensing – Colours
A few months ago, quantum computing advantage through Gaussian Boson Sampling was reported in 3m^2 benchtop experiment, and, only a few weeks ago, its integrated photonic counterpart. Crucial there is an integrated and scalable source of non-classical (squeezed) light, demonstrated just recently. Le
Design and Monolithic Integration of High-Speed µ-OLEDs on Silicon for Light Communications – DEUS
Two major advances give strong credibility that a scientific and technological revolution is at hand with both ultra-fast organic optoelectronics and organic photonic above integrated circuits: 1- the recent demonstration of sub-ns and -ps optical responses in high-speed organic light emitting diode
REliable hardware for TRUSTworthy artificial INtelliGence – RE-TRUSTING
Artificial Intelligence (AI) algorithms, and in particular Deep Neural Networks (DNNs), typically run in the cloud on clusters of CPUs and GPUs. To be able to run DNNs algorithms out of the cloud and onto distributed Internet-of-Things (IoT) devices, customized HardWare platforms for Artificial Inte
3D Polarization: theory and measurement – 3DPol
Many modern photonic applications involve light that is strongly focused or confined, where the three components of the electric field at each point are significant. The standard 2D polarization formalism and the associated experimental tools become inadequate in these situations, in which a 3D pola
Tip-enhanced TeRAhertz sPIntronic emitters to unravel ultrafaST nanoscale dynamics – TRAPIST
Whilst the boom in THz research is still far from filling the THz technology gap, imaging at the nanoscale and at sub-ps timescales is currently a hot topic in spectroscopic micro- and nano-scopy. Since it can reveal THz dynamics and their spatial dispersion in a contactless manner, it is can provi
On-chip Free Electron Laser in the Infrared – OFELIA
OFELIA aims at developing a new class of devices termed “on-chip free electron lasers”(FELs) that will bring the wavelength versatility of macroscopic FELs to integrated optics. These lasers will rely on stimulated Cherenkov emission generated inside a periodic dielectric structure, that is traverse
Cavity enhanced absorption spectroscopy for optical flux monitoring during thin film growth – CEAS-OFM
Thin film deposition processes are key in many technologies. Developing a sensor to precisely control in-situ, operando and on line the growth rate/composition of thin layers is thus a critical issue, which remains unsatisfactorily addressed by existing solutions. The purpose of the project is to de
Dynamic Mott transition for Nanoelectronics – NANODYN
Correlated materials are highly promising for micro and nanoelectronics, with the possibility to change the state of matter by a short electrical or optical excitation. In particular, the use of the dynamic phase transition observed in canonical narrow gap Mott insulators, which gives rise to specif
Broadband mId-infrared semiconductor modulators – BIRD
Fast amplitude and phase modulation is essential for a plethora of applications in photonics, including laser amplitude/frequency stabilisation, coherent detection, optical communications, spectroscopy, gas sensing etc. In the mid-infrared (MIR) wavelength range (3-12um) broadband MDs are missing, h
Bright infrared light emitting diode with enhanced light-matter coupling – BRIGHT
Lighting is a major source of energy consumption and the introduction of LEDs has been a game changer to reduce electrical consumption. Nanocrystal-based LEDs (QLEDs) have reached a high level of maturity with their use as light source in displays. In the infrared, there is currently a technological
rEconfigurabLE on-Chip ulTRabrOaDband supErcontinuum – ELECTRODE
For supercontinuum generation, optical chips are the promise of low-cost and low-footprint devices while allowing going further in the middle infrared. In this context, various platforms have been successfully investigated. Each material provides specific advantages but also strong potential limitat
Photon sorting for efficient infrared detection with nanostructures – POSEIDONS
Efficient multi-band infrared quantum detectors operating from 8 µm to 14 µm are crucial for many applications, such as molecule detection or imaging. Nevertheless, existing detectors still lack a fundamental function: pixel colorization. The reasons for this are two-fold. Firstly, pixel-size filter
Spintronic Metaplastic Synapse – SPlaSy
It is well known that the human brain can learn new memories without forgetting those previously learned. Artificial neural networks, aimed at making high-performing computing imitating the computation scheme of the human brain, suffer from a critical loss of memory of previously learned tasks upon
Nucleation and growth of III-V on Si explored in situ – NUAGES
Epitaxial growth of III-V semiconductors on Si (001) is highly strategic but the numerous defects created from the nucleation stage remain an obstacle to the development of Si photonics. We propose to explore, in situ and at the atomic scale, the formation of these defects, to follow in real time th
Hybrid fiber/ Chip-based Mid-IR supercontinuum source FULly reconfigurable – MIRthFUL
The mid-infrared (mid-IR, 3 to 15 um) wavelength domain is gaining a significant momentum across a whole range of applications from free-sapce telecommunications to health, industrial and environmental monitoring. Despite its recognized potential, mid-IR technologies are still limited to niche appli
RAtional Pathways TOwards high performance ORganic Semiconductors – RAPTORS
Conjugated organic molecules and polymers hold a great potential for flexible, cheap and eco-friendly (opto)electronics. This project has the ambition to provide a fundamental contribution to overcome existing bottlenecks currently hampering the widespread application of organic semiconductors, such
On-demand Phase Transition In Tungsten Alloys of Selenium and TEllurium – OPTI-TASTE
Moving from exfoliation to the reproducible direct growth of transition metal dichalcogenides, MX2 [M=W or Mo, X=S, Se or Te], on conventional or van der Waals substrates is the current challenge in the moving field of two-dimensional (2D) materials research. S tarting from WSe2 and WTe2, we fir