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Institut Langevin @instlangevin.bsky.social · 3d

How do you find objects hidden in sand or fog? 🌫️🏝️
A team from @instlangevin.bsky.social & TU Wien just published in Nature Physics a new way to “see” through opaque media using a wave fingerprint matrix — making the invisible visible! 🔍✨
Read more: rdcu.be/eI4Mh
#Imaging

Detection and characterization of targets in complex media using fingerprint matrices

Nature Physics - Imaging through complex media is challenging because scattering results in image blurring. By introducing a fingerprint operator and applying it to the measured reflection matrix,...

rdcu.be

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Institut Langevin @instlangevin.bsky.social · Sep 5

Pedro Mecê wins ERC Starting Grant 2025 for MIRACLE-AD👏 The project uses advanced retinal imaging to detect early signs of Alzheimer’s, mapping neuronal & vascular responses at cellular resolution. 🧠👁
A brilliant blend of physics, optics & clinical medicine!
#ERC #RetinalImaging #Neuroscience

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Institut Langevin @instlangevin.bsky.social · Sep 2

Researchers at Langevin Institute used the “red eye” effect to illuminate the living human eye from behind 👁️✨. This revealed corneal layers, cells, nerve fibers, lens sutures, and guttata in Fuchs’ dystrophy — all in vivo 💡📷.
Congrats to the authors 🎉!
www.nature.com/articles/s41...
#EyeImaging

Transmission interference microscopy of anterior human eye - Nature Communications

By harnessing the eye’s own red-eye glow as back-lighting, researchers delivered sharp, 2 mm-wide views of live cornea and lens cells, unmasking Fuchs dystrophy and enabling low-cost, precise eye diag...

www.nature.com

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Institut Langevin @instlangevin.bsky.social · Aug 29

🚀 New theory of wave transport!
Researchers at Institut Langevin introduce Radiant Field Theory (RFT), extending the classic radiative transfer equation to capture interference and wavefront shaping.
PRL👉 doi.org/10.1103/g3kd...
PRResearch👉 doi.org/10.1103/djhy...
#WavefrontShaping #Optics #Physics

Radiant Field Theory: A Transport Approach to Shaped Wave Transmission through Disordered Media

We present a field-theoretic framework to characterize the distribution of transmission eigenvalues for coherent wave propagation through disordered media. The central outcome is a transport equation ...

journals.aps.org

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Institut Langevin @instlangevin.bsky.social · Aug 28

Congrats to our colleagues S. Alhaddad, A.C. Boccara, and V. Mazlin, & collaborators at Quinze-Vingts National Ophthalmology Hospital for their paper: Transmission interference microscopy of anterior human eye, published in Nature Communications. doi.org/10.1038/s414... @espciparispsl.bsky.social

Transmission interference microscopy of anterior human eye - Nature Communications

By harnessing the eye’s own red-eye glow as back-lighting, researchers delivered sharp, 2 mm-wide views of live cornea and lens cells, unmasking Fuchs dystrophy and enabling low-cost, precise eye diag...

doi.org

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Institut Langevin @instlangevin.bsky.social · Aug 28

Félicitations à notre cher collègue, le Professeur Arnaud Tourin, nommé Directeur du Département d'Evaluation de la Recherche de l'HCERES ! Il organisera la conduite des évaluations des entités de recherche recevant des financements publics (près de 500 par an). www.aefinfo.fr/depeche/7356...

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Institut Langevin @instlangevin.bsky.social · Aug 25

🧠✨ Big step forward in brain imaging!
CNRS teams have combined matrix imaging + ultrasound localization microscopy to create super-res 3D images of the brain’s vascular network — artifact-free, beyond MRI & CT.
A breakthrough for stroke diagnosis & prevention. 🚀
www.science.org/doi/10.1126/...

Ultrasound matrix imaging for 3D transcranial in vivo localization microscopy

Ultrasound matrix localization microscopy provides a three-dimensional, artifact-free, and superresolved image of brain vessels.

www.science.org

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Institut Langevin @instlangevin.bsky.social · Aug 6

Replaying analog signals backwards with phase preserved is now real. Rare-earth ion-doped crystals + cryo temperatures make real-time wave refocusing possible without digital delays.
🔗 doi.org/10.1364/OL.5...
Kudos to Anne Louchet-Chauvet and Thomas Llauze for this work!

Optica Publishing Group

doi.org

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Institut Langevin @instlangevin.bsky.social · Jul 24

Proud of our colleagues' latest work using guided waves to improve elastography in challenging tissues like tendons. A step forward for more reliable, noninvasive diagnostics!
🔗 Read more in the link doi.org/10.1088/1361...
#MedicalImaging #WavePhysics #Elastography

Exploring the limits to quantitative elastography: supersonic shear imaging in stretched soft strips - IOPscience

Exploring the limits to quantitative elastography: supersonic shear imaging in stretched soft strips, Croquette, Samuel, Delory, Alexandre, Kiefer, Daniel A, Prada, Claire, Lemoult, Fabrice

doi.org

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Institut Langevin @instlangevin.bsky.social · Jul 12

Félicitations à notre collègue Alex Aubry, qui reçoit le prix J. Jerphagnon 2025 👏
Formé à l’Institut Langevin, il incarne brillamment nos valeurs d’excellence et de recherche transdisciplinaire.
Une belle reconnaissance pour un parcours à la croisée de la science et de l’innovation. Bravo Alex !

ESPCI Alumni @espcialumni.bsky.social · Jul 11

Félicitations à Alexandre AUBRY #ESPCIAlum, directeur de recherche CNRS à l'Institut Langevin & fondateur de la startup OWLO, lauréat 2025 du Prix Jean-Jerphagnon de la Société française d'optique (SFO)
www.linkedin.com/posts/ass-so...

@instlangevin.bsky.social
@espciparispsl.bsky.social
@cnrs.fr

✈️ En route vers le Prix Jean Jerphagnon 2025 ! | SFO - SOCIETE FRANCAISE D'OPTIQUE

✈️ En route vers le Prix Jean Jerphagnon 2025 ! 5 talents, 5 projets, 5 nominés. ⏳ Compte à rebours : 5, 4, 3, 2, 1 Alexandre Aubry est le lauréat 2025 du prestigieux Prix Jean Jerphagon. 🔬 Alexandr...

www.linkedin.com

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Institut Langevin @instlangevin.bsky.social · Jul 7

Séminaire hors-les-murs de l’Institut Langevin à Saint-Malo 🌊
Deux jours pour penser nos projets autrement, partager nos idées, et prendre un bon bol d’ondes (et d’air marin). Merci à Christelle, Nathalie et Suzanne pour l’organisation parfaite 🙌
#InstitutLangevin #OndesEtImages #SaintMalo

photo de groupe devant les remparts de Saint-Malo

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Institut Langevin @instlangevin.bsky.social · Jul 5

Proud of our team’s latest work in Science Advances—a major step in high-resolution, noninvasive imaging of neurovascular coupling in the human retina. Congrats to all collaborators!
🔗 www.science.org/doi/10.1126/...
@cnrs-paris.bsky.social @espciparispsl.bsky.social @psl-univ.bsky.social

Revealing neurovascular coupling at a high spatial and temporal resolution in the living human retina

An optical method reveals neurovascular coupling in the human retina with unprecedented spatial and temporal resolution.

www.science.org

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Institut Langevin @instlangevin.bsky.social · Jul 3

👏 Très belle contribution d’Anne Louchet-Chauvet au Congrès Général de la SFP à Troyes !
Elle a présenté ses travaux sur la détection ultra-sensible de déformations dans un cristal dopé aux terres rares. Des avancées prometteuses pour les capteurs de très haute précision.
#CGSFP2025 #Physique

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Institut Langevin @instlangevin.bsky.social · Jun 30

First edition of the Institut Langevin's bike ride. A great day in the sunshine in the Rambouillet forest.

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Reposted by Institut Langevin

SIOF-Plasmonica @plasmonica.bsky.social · Jun 26

The second day of #PLASMONICA2025 has started 🔔 with an invited talk on "Sensing electromagnetic landscapes in 3D with single molecules and nm resolution" by Valentina Krachmalnicoff from @instlangevin.bsky.social Paris. We're having the time of our lifetime 😏!

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Institut Langevin @instlangevin.bsky.social · Jun 26

Congratulations to the authors: Romain Pierrat, Julia Rocha, @remicarminati.bsky.social

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Institut Langevin @instlangevin.bsky.social · Jun 26

@cnrs-paris.bsky.social @espciparispsl.bsky.social @psl-univ.bsky.social
Kudos to the authors: Yamil Abraham, Bart Van Tiggelen, Nicolas Benech, Carlos Negrera, Xiaoping Jia, and Arnaud Tourin!

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Institut Langevin @instlangevin.bsky.social · Jun 26

Researchers from @instlangevin.bsky.social and LPMMC used time-reversed ultrasound to measure diffusion in a dense granular medium. A single sensor refocused waves to their origin, revealing information thought lost.
📄 doi.org/10.1103/47wj...

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Institut Langevin @instlangevin.bsky.social · Jun 26

News from Institut Langevin: temporal disorder doesn't damp waves—it just shifts their frequency. No energy loss. No perturbation theory. Just causality at work.
🔗 doi.org/10.1103/td38...
@espciparispsl.bsky.social
@cnrsingenierie.bsky.social
@cnrs-paris.bsky.social
@psl-univ.bsky.social

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Institut Langevin @instlangevin.bsky.social · Jun 26

Congratulations to the authors Romain Pierrat, Julia Rocha and @remicarminati.bsky.social

Reposted by Institut Langevin

smpopoff.bsky.social @smpopoff.bsky.social · Jun 23

New tutorial on identifying and compensating for systematic errors in off-axis holography, which can have non-negligible effects on transmission matrix measurements.
#wavefrontshaping #optics #Python #digitalholography
@instlangevin.bsky.social
www.wavefrontshaping.net/post/id/91

How to Correct for Bias in Off-Axis Holography for Transmission Matrix Measurements - Wavefrontshaping.net

How to Correct for Bias in Off-Axis Holography for Transmission Matrix Measurements

www.wavefrontshaping.net

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Institut Langevin @instlangevin.bsky.social · Jun 3

BRAVO à notre chère collègue Valentina Krachmalnicoff qui a magnifiquement soutenu son habilitation à diriger des recherches aujourd'hui. @cnrs.fr @espciparispsl.bsky.social @InstLangevin.bsky.social

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Reposted by Institut Langevin

Rémi Carminati @remicarminati.bsky.social · May 9

Bravo à @institutfresnel.bsky.social pour ces 25 années réussies ! Et ravi de participer à la fête scientifique le 9 juillet @espciparispsl.bsky.social #IOGS @instlangevin.bsky.social

Institut Fresnel @institutfresnel.bsky.social · May 9

🎂🥂 Notre labo fêtera ses 25 ANS mercredi 9 juillet !
📍Campus St Jérôme
🕘 De 9H à 17H30, Conférences @slfort.bsky.social #ISMO @remicarminati.bsky.social #IOGS Matteo Barsuglia #APC & Philippe Lalanne #LP2N
UMR @univ-amu.fr @cnrsingenierie.bsky.social @cnrs-dr12.bsky.social @centralemed.bsky.social

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Reposted by Institut Langevin

Yannick De Wilde @yannickdewilde.bsky.social · May 10

Postdoctoral position at @instlangevin.bsky.social @espciparispsl.bsky.social arispsl.bsky.social @cnrs.fr on plasmonic antennas & 2D material devices at the nanoscale in the infrared via near-field microscopy & related methods: SNOM, TRSTM, IR-SMS,…

www.institut-langevin.espci.fr/nanoscale_im...

Institut Langevin - Ondes et Images : Nanoscale study of infrared emission from van der Waals heterostructures and plasmonic antennas.

Site de l’Institut Langevin (Ondes et Images), ESPCI

www.institut-langevin.espci.fr

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Reposted by Institut Langevin

Yannick De Wilde @yannickdewilde.bsky.social · May 9

New paper on modeling heat transport in fibrous insulation materials at representative volume scale! Congrats to Clémence Gaunand & partners at @instlangevin.bsky.social @saintgobaingroup.bsky.social & @institutpprime.bsky.social within a CIFRE PhD project! Phys. Rev. Appl. doi.org/10.1103/Phys...

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