Waves Theory and Mesoscopic Physics

Research topics

Wave propagation in correlated media
Non-linear and/or time-dependent media
Complex quantum systems
Homogenization and metasurfaces
Wavefront shaping
Localization

> Discover a few examples of our activities...

News

Multiple scattering theory in one dimensional space and time dependent disorder: average field [Invited] Selvestrel, A., J. Rocha, R. Carminati, and R. Pierrat Optical Materials Express 14, no. 3, 801-815 (2024) Abstract: We theoretically study the propagation of light in one-dimensional space- and time-dependent disorder. The disorder is described by a fluctuating permittivity ε(x, t) exhibiting short-range correlations in space and time, without cross correlation between them. Depending on the illumination conditions, we show that the intensity of the average field decays exponentially in space or in time, with characteristic length or time defining the scattering mean-free path ℓs and the scattering mean-free time τs. In the weak scattering regime, we provide explicit expressions for ℓs and τs, that are checked against rigorous numerical simulations.
Light in correlated disordered media Vynck, K., R. Pierrat, R. Carminati, L. S. Froufe-Pérez, F. Scheffold, R. Sapienza, S. Vignolini, and J. J. Sáenz Reviews of Modern Physics 95, no. 4 (2023)
Characterization of ejecta in shock experiments with multiple light scattering Don Jayamanne, J. A., J. R. Burie, O. Durand, R. Pierrat, and R. Carminati Journal of Applied Physics 135, no. 7 (2024) Abstract: Upon impact, the free surface of a solid metal may eject a cloud of fast and fine particles. Photon Doppler Velocimetry (PDV) is one of the optical diagnostics used to characterize these ejecta. Although the technique provides a direct way to estimate the particle velocities in the single scattering regime, it has been shown that multiple scattering cannot be neglected in real ejecta. Here, we derive a model for PDV measurements starting from the first principles of wave scattering. We establish rigorously the relationship between the specific intensity and the measured signal, as well as the Radiative Transport Equation (RTE) that describes the evolution of the specific intensity upon scattering and absorption in dynamic ejecta, including the effects of inelastic scattering and inhomogeneities in the optical properties. We also establish rigorously the connection between the Monte Carlo scheme used for numerical simulations and the solution to the RTE. Using numerical simulations, we demonstrate the crucial contribution of multiple scattering to PDV spectrograms as well as the effect of statistical inhomogeneities in particle size distribution. These results could substantially impact the analysis of ejecta by PDV.
Backscattering reduction in a sharply bent water wave channel Kucher, S., A. Koźluk, P. Petitjeans, A. Maurel, and V. Pagneux Physical Review B 108, no. 21 (2023) Abstract: We study theoretically and experimentally how to reduce the backscattering of water waves in a channel with multiple turns. We show that it is possible not only to cancel backscattering but also to achieve a remarkable transmission in such geometries. In order to avoid the reflection that naturally arises at each turn of the waveguide, an anisotropic metamaterial made of closely spaced thin vertical plates is used. The efficiency of the metamaterial arrangement depends only slightly on the frequency of the incident wave, as long as its wavelength is much larger than the periodicity of the array. This phenomenon is applies not only to water wave channels but also to any type of waves with Neumann boundary conditions.
Realization-dependent model of hopping transport in disordered media Thayil, A., and M. Filoche Applied Physics Letters 123, no. 25 (2023)

> All publications...

Download

Theses, Scientific notes, Lecture notes

Active collaborations

Habib Ammari, Department of Mathematics, ETH Zurich
Geoffroy Aubry, Institut de Physique de Nice
Jean-Philippe Banon, Laboratoire Charles Fabry, Institut d’Optique Graduate School
Élie Bretin, Pôle de Mathématiques, INSA Lyon
Yaron Bromberg, Complex Photonics Lab, The Hebrew University of Jerusalem
CEA DAM
Hui Cao, Hui Cao Research Laboratory, Yale University
Nicolas Cherroret, Complex Quantum Systems, Laboratoire Kastler Brossel
Hilton de Aguiar, Optical imaging in biological and complex media, Laboratoire Kastler Brossel
Aristide Dogariu, Photonics Diagnostics of Random Media, University of Central Florida
Sylvain Gigan, Optical imaging in biological and complex media, Laboratoire Kastler Brossel
Wade Hsu, Optics in Complex Systems, USC
Ori Katz, Advanced Imaging Lab, The Hebrew University of Jerusalem
Fabrice Mortessagne, Institut de Physique de Nice
Sushil Mujumdar Nano-Optics & Mesoscopic Optics Laboratory, TIFR
Stefan Rotter, Nonlinear dynamics & Complex scattering, Vienna University of Technology
L’Oréal
Saint-Gobain Recherche
Riccardo Sapienza, Complex Nanophotonics, King’s College London
Frank Scheffold, Soft Matter Photonics, University of Fribourg
John Schotland, Department of Mathematics, Yale University
Laurent Seppecher, École Centrale de Lyon
Boris Shapiro, Technion
Simons collaboration on Localization of Waves
Ingve Simonsen, NTNU, Trondheim
Douglas Stone, Department of Applied Physics, Yale University
Nicolas Treps, Quantum Optics group, Laboratoire Kastler Brossel
Damien Vandembroucq, PMMH, ESPCI Paris - PSL
Silvia Vignolini, Max Planck Institute of colloids and interfaces, Potsdam
Kevin Vynck, Institut Lumière Matière, Lyon
Alexey Yamilov, METIS group, MST
Hasan Yılmaz, Bilkent University

Group leader

Rémi CARMINATI

Tel.: +33 (0)1 80 96 30 72

Permanent staff

Rémi CARMINATI

Tel.: +33 (0)1 80 96 30 72

Marcel FILOCHE

Tel.: +33 (0)1 80 96 30 82

Arthur GOETSCHY

Tel.: +33 (0)1 80 96 39 46

Agnès MAUREL

Pierre MILLIEN

Tel.: +33 (0)1 80 96 30 51

Romain PIERRAT

Tel.: +33 (0)1 80 96 30 70

External collaborators

No result

Postdoctoral fellows, teaching assistants and PhD students

Angélique CAMPANIELLO

Tel.: +33 (0)1 80 96 30 34

Jérôme DON JAYAMANNE

Tel.: +33 (0)1 80 96 33 44

David GASPARD

Tel.: +33 (0)1 80 96 30 79

Eduardo MONSALVE

Romain RESCANIERES

Tel.: +33 (0)1 80 96 33 41

Alioune SEYE

Tel.: +33 (0)1 80 96 33 41

Margaux VRECH

Tel.: +33 (0)1 80 96 30 34

Interns

Aurore CHAUVET

Lorenzo SONCIN

Past members

Étienne MINNAERT, Alexandre SELVESTREL, Romain MONSARRAT, Julia ROCHA, Han CHEN, Mathieu DURAND, Maxime MATTHES, Alan PIETTE, Jean-Philippe BANON, Alexandra SHEREMET, Clotilde PROPHETE, Ugo TRICOLI, Nikos FAYARD, Dorian BOUCHET, Florian BIGOURDAN, Chang Chi KWONG, Olivier LESEUR, Diego BARESCH, Valentina PARIGI, Ibrahim BAYDOUN, Antoine CANAGUIER-DURAND, Da CAO, Marc DUBOIS, Nicolas BACHELARD, Alexandre CAZÉ, Kevin VYNCK, Étienne CASTANIÉ, Rémi VINCENT, Matthieu BOFFETY, Cédric VANDENBEM, Luis FROUFE-PEREZ, Hugues MARINCHIO

Top

The Langevin Institute

News

Research

People

Publications

Seminars & workshops

Teaching

Now hiring

Contact

Waves Theory and Mesoscopic Physics

Research topics

News

Download

Active collaborations

Group leader

Permanent staff

External collaborators

Postdoctoral fellows, teaching assistants and PhD students

Interns

Past members

Sections