Informations générales
Intitulé de l'offre : CDD Doctorant M/F Computational imaging in complex media (H/F)
Référence : UMR7249-JULMOT-001
Nombre de Postes : 1
Lieu de travail : MARSEILLE 13
Date de publication : lundi 23 juin 2025
Type de contrat : CDD Doctorant
Durée du contrat : 36 mois
Date de début de la thèse : 1 octobre 2025
Quotité de travail : Complet
Rémunération : 2200 gross monthly
Section(s) CN : 08 - Micro et nanotechnologies, micro et nanosystèmes, photonique, électronique, électromagnétisme, énergie électrique
Description du sujet de thèse
Our team is specialized in digital imaging. The latter requires precise modeling of the relationship between the recorded data and the sample and sophisticated inversion techniques to retrieve an estimate of the sample from the data. In this context, we have shown that multiple scattering, which is generally detrimental to image formation, could be used to improve the spatial resolution of the imager[1]. As part of this project, we aim to obtain images of complex samples in a reflection microscope, which means that the sample is illuminated and observed from the same side. This configuration is encountered in applications where the samples are so thick and diffusive that light cannot pass through. Our goal is to improve the meaning of the image in this specific configuration. The objectives of this thesis: 1 to develop a numerical tool capable of simulating light-matter interactions for thick (hundreds of wavelengths) heterogeneous and therefore scattering samples. 2 study the propagation and focus of a beam in these scattering media 3 develop inversion techniques in reflection holotomography (close to optical coherence tomography) allowing to improve the image of thick samples. We are looking for a student who enjoys theory and programming and has knowledge about wave propagation and, if possible, inverse problems
Contexte de travail
The thesis will be carried out at the Fresnel Institute in Marseille, a laboratory specialized in optics and electromagnetism. The work will be carried out within the SEMO team. The position is located in a sector related to the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival be authorized by the competent authority of the MESR.
Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.
Contraintes et risques
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