Institut Langevin - Ondes et images

👋 Exciting opportunity for PhD and Master's students! We’re offering internships at Institut Langevin - Ondes et images, where you can work in a dynamic, cutting-edge environment at the intersection of waves, imaging, and innovation. 💡 Don't miss the chance to be part of groundbreaking research and advance your career! 📍 Apply now to gain hands-on experience and collaborate with leading experts in the field. #Internship #PhD #Masters #Research #Innovation" Ignacio Izeddin, Clément Cabriel and Anne Louchet-Chauvet https://lnkd.in/eWd6xMxW

🌋A breathtaking view of the bowels of a volcano🌋 Scientists from Institut Langevin - Ondes et images and Institut de Physique du Globe de Paris have developed a groundbreaking imaging method that probes the depths of volcanoes at unprecedented resolution. This innovative passive matrix imaging technique allows researchers to visualize internal structures up to 10 km deep, using seismic noise. Applied to La Soufrière volcano in Guadeloupe, the method revealed intricate magma storage networks and enhanced our understanding of volcanic behavior, potentially transforming eruption prediction. Exciting times for volcanology! 🌍✨ 📰 Read the full paper here: https://lnkd.in/eKzTq8_K Kudos to the team: Elsa Giraudat, Arnaud Burtin, Arthur Le Ber, Mathias Fink, Jean-Christophe Komorowski and Alexandre Aubry 👏

🌟 Disordered multimode fibers remember rotation 🌟 In the fields of telecommunications and medical imaging, disordered multimode optical fibers hold immense potential. They can significantly boost data rates and enable high-resolution imaging, but distortions from imperfections have been a challenge. Researchers from Institut Langevin - Ondes et images, Racah Institute of Physics, Laboratoire PhLAM and Prysmian have made a breakthrough by characterizing how these imperfections affect fiber throughput, unveiling the Rotational Memory Effect (RME). This phenomenon demonstrates how input rotation influences output, despite inherent flaws. This work not only minimizes distortions but also introduces innovative applications, such as calibration-free imaging in endoscopy, making procedures more efficient and less invasive. Congratulations to the team ! Rodrigo Gutierrez Cuevas, Arthur Goetschy, Yaron Bromberg, Guy Pelc, Esben Ravn Andresen, Laurent Bigot, Yves Quiquempois, Maroun Bsaibes, Pierre Sillard, Marianne Bigot, Ori Katz, Julien de Rosny and Sébastien Popoff 👏 Read the full-text paper here: https://lnkd.in/eUet8XXZ CNRS ESPCI Paris - PSL PSL Research University

🚀 Extreme Laser Frequency Chirps 🔬 Precise control of a laser’s instantaneous frequency is critical for many cutting-edge technologies, from lidar to quantum systems. Researchers at the Institut Langevin - Ondes et images and Chimie ParisTech - PSL have made a significant leap in this area. Using a multi-step strategy with a commercial Photodigm semiconductor laser, they achieved extremely steep frequency excursions with exceptional precision. By correcting systematic errors and employing a combination of feedback and feed-forward correction, they’ve managed to produce frequency shifts of several hundred MHz in mere microseconds, with residual errors under 1%. ⚡ Not only does this innovation allow for precise control, but it also refines the laser's monochromatic beam emission to a linewidth of less than 10 kHz—nearly 100x better than its original performance. 👏 Kudos to Thomas Llauze, Félix Montjovet, and Anne Louchet-Chauvet for this groundbreaking work! Read more about this work in Applied Optics: https://lnkd.in/eDhUu-Ma CNRS ESPCI Paris - PSL PSL Research University SILENTSYS

📽 Advancing Optical Wavefront Shaping with Projector Technology 📽 Wavefront shaping is key to controlling light in complex systems, but traditional liquid crystal modulators are limited by their slow speed. A promising alternative is Digital Micromirror Devices (DMDs), commonly used in projectors, which offer much faster modulation. However, adapting DMDs for research poses challenges like aberrations and instabilities. Our colleagues Institut Langevin - Ondes et images have developed practical solutions to these issues, making DMDs more accessible for optical experiments. They propose practical, easy-to-implement solutions for each issue, along with characterization and validation procedures that require minimal modifications to a typical wavefront shaping experiment. 📰 Read more about these findings in the tutorial published in Journal of Physics: Photonics: https:/https://lnkd.in/g-8brNfA Congrats to the team: Sébastien Popoff, Rodrigo Gutierrez Cuevas, Yaron Bromberg and Maxime Matthès!

The Institut Langevin is urgently looking for a postdoc on "Single-molecule fluorescence lifetime imaging nanoscopy for biophysics and thermoplasmonics". All the information is available here: https://lnkd.in/eVkkx6j9 Please contact Valentina Krachmalnicoff ASAP if you are interested.

🔬 Understanding Ejecta: Unlocking the Secrets of Particle Behavior Under Impact 🔬 When a metal undergoes a severe impact, it produces a cloud of tiny, fast-moving particles known as ejecta. Studying these particles and their size-velocity distribution offers invaluable insights into the properties of matter, as well as critical information on the forces and effects of collisions. This knowledge has wide-ranging applications, from understanding geological history and crater formation to improving disaster preparedness. Traditional methods like Mie-scattering and holography have provided some insights into ejecta, but they fall short in analyzing complex particle formations due to the extreme velocity and brief duration of ejecta phenomena. To address this challenge, researchers at Institut Langevin have turned to Photon Doppler Velocimetry (PDV) simulations. By sending light into the ejecta and analyzing the returning light, they can gather additional information about particle behavior in real-life scenarios. Using simulated PDV spectrograms, the research team predicted the size distribution of ejecta through various media. To validate their findings, they conducted experiments with tin disks and copper projectiles, refining their simulations to match experimental results. This innovative approach not only enhances our understanding of ejecta but also introduces new physics to existing simulation frameworks, paving the way for more accurate analyses in future studies. 📜 Read more about these results: https://lnkd.in/eEppe3ZV Congrats to the team at Institut Langevin: Jérôme A. Don Jayamanne Rémi Carminati Romain Pierrat, and their colleagues at Commissariat a l'Energie Atomique et aux Energies Alternatives CNRS ESPCI Paris - PSL PSL Research University

🚀 Exciting breakthrough in 3D imaging! Researchers at Institut Langevin - Ondes et images have developed a revolutionary microscope that captures high-resolution images of biological tissues at unprecedented depths and speeds. This innovation overcomes traditional optical microscopy limits, enabling real-time, non-invasive tissue inspection with sub-cellular precision. The technology opens new possibilities in fields like in-vitro fertilization, organoid analysis, ophthalmology, and dermatology. 🖋 Supported by the EU’s Horizon 2020 program, this research has already led to a patent and will soon give rise to OWLO, a start-up launching in September 2024 to bring this groundbreaking microscope to market. 💉 This advancement marks a major leap forward in scientific research and healthcare, with immense potential to impact the future of medicine! 📰 Read more about these results in Nature Photonics https://lnkd.in/epExqsH4 and Nature Communications https://lnkd.in/ej2wfG-9 👏 Congrats to Alexandre Aubry's team and collaborators: Paul Balondrade Victor Barolle Nicolas Guigui, PhD Emeric Auriant Nathan Rougier CLAUDE BOCCARA Mathias Fink Ulysse Najar CNRS ESPCI Paris - PSL PSL Research University European Research Council (ERC)

📬 La nouvelle lettre innovation du CNRS est sortie ! Laboratoires communs, start-up, brevets, événements... Retrouvez tous les mois les dernières actualités de la valorisation et de l'innovation au CNRS. 💡 ➡ https://lnkd.in/d_hWPrNM ----------------- 🔔 Vous souhaitez vous abonner ? Inscrivez-vous ➡ https://lnkd.in/edMYesjm #CNRSinnovation #innovation #valorisation | CNRS Innovation

We are delighted to share yet another groundbreaking study from our Waves, complexity and information team, in collaboration with LIPHY Laboratory for Interdisciplinary Physics, just published in Nature Communications. This research extends traditional light manipulation techniques by utilizing higher-order tensors, essential for managing complex systems with non-linearities where 2D matrices are insufficient. It highlights the significant role of higher-order tensors in handling light in complex media like multimode fibers and scattering media. Demonstrated in multimode fiber sensors, this approach significantly enhances sensitivity, allowing precise detection of sub-micron deformations. The findings promise notable advancements in sensing, imaging, and telecommunications. 🔗 Read the Full Study: https://lnkd.in/eSXVReaY Congratulations to Rodrigo Gutierrez Cuevas, Dorian Bouchet, Julien de Rosny and Sébastien Popoff for this remarkable achievement! CNRS ESPCI Paris - PSL PSL Research University