Overview
ABSTRACT
Understanding wave propagation through scattering disordered media is a major challenge in wave physics, notably concerning medical applications. Such medium diffuses the waves several times, mixes the light information in an aleatory fashion and is considered as opaque. However, in such a medium, the information is not lost. This article presents a method in order to characterize the response of a medium and be thus able to "see" an image through an opaque medium.
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Read the articleAUTHORS
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Sébastien POPOFF : Doctoral student - University of Paris VII
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Geoffroy LEROSEY : CNRS Research Fellow
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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
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]
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Controlling light through scattering disordered media
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