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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

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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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Controlling light through a disordered medium
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