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Article | REF: RE206 V1

Controlling light through a disordered medium - Matrix approach and applications

Authors: Sébastien POPOFF, Geoffroy LEROSEY, Sylvain GIGAN

Publication date: December 10, 2011 | Lire en français

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    AUTHORS

    • Sébastien POPOFF: Doctoral student - University of Paris VII

    • Geoffroy LEROSEY: CNRS Research Fellow

    • Sylvain GIGAN: Senior Lecturer - École Supérieure de Physique et de Chimie Industrielle ESPCI

     INTRODUCTION

    Abstract: Understanding wave propagation through a disordered scattering medium is a major challenge in wave physics, particularly for medical applications. A medium that scatters waves many times, mixes light information randomly and is considered opaque. Nevertheless, in such a medium, information is not lost. We present here a method for characterizing the response of a medium so as to be able to "see" an image through an opaque medium.

    Keywords: Optics – Multiple scattering – Complex media – Transmission matrix – Random matrices – Inverse problem – Phase conjugation

    Key points

    Sector: Optics

    Degree of technology diffusion: Emergence I Growth I Maturity

    Technologies involved: Laser – Spatial light modulator

    Applications: Medical imaging – Telecommunications

    Main French players :

    Competitive clusters: Optics Valley

    Competence centers: Institut Fresnel (Marseille) – Institut Langevin (Paris)

    Manufacturers: Thalès – Imagine Optics

    Other international players: Allard Pieter Mosk (University of Twente) –Changhuei Yang (California Institute of Technology) – Rafael Piestun (University of Colorado)

    Contact: [email protected]

    http://www.institut-langevin.espci.fr/

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