PhD Positions
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New PhD positions for oct. 2023
Apply now & before March 28th 2022, for a PhD start in October 2023 !
The topics involve signal theory, image analysis and reconstruction, modelling in electromagnetism, experimental optics in advanced imaging with applications in biology and astronomy, characterization and detection methods, as well as optical components and nanophotonics.
To apply : please contact the PI in charge of the topics
Métamatériaux et Métasurfaces variant dans le temps.
redha.abdeddaim@fresnel.fr
Suivi de l’activité de neurones en culture par microscopie de front d’onde.
guillaume.baffou@fresnel.fr
Photoacoustic imaging of neuronal activity in mice.
thomas.chaigne@fresnel.fr
Variable field‐of‐view x‐ray crystalline microscopy for in vivo study of biomineralization.
virginie.chamard@fresnel.fr
2 photon correlations: from fundamentals to applications.
thomas.durt@fresnel.fr
Diagnostic optique de propriétés biomécaniques de la cornée humaine : application
à la détection précoce du kératocône et à la mise en évidence de kératoplastie ancienne.
julien.fade@fresnel.fr
Etude théorique et numérique des cristaux photoniques modulés en temps
boris.gralak@fresnel.fr
Ultrafast nonlinear optical response and dynamics of 2D thin films.
konstantinos.iliopoulos@fresnel.fr
Optimisation des liaisons satellitaires laser avec l’intelligence artificielle.
ali.khalighi@fresnel.fr
Illumination structurée et ciblée pour la microscopie super-résolue.
legoff@fresnel.fr
Multilayer structures with striking visual effects for art and security applications.
julien.lumeau@fresnel.fr
Optical Fourier Ptychography for super-resolved imaging
patrick.chaumet@fresnel.fr & guillaume.maire@fresnel.fr
Photonic of nonlinear media : Application to the redefinition of the nonlinear susceptiblities of highly dispersive and anisotropic nanostructures.
gilles.renversez@fresnel.fr
High resolution three-dimensional optical profilometry.
gabriel.soriano@fresnel.fr
Optically-controlled thermal nanotweezers to manipulate single nano-objects.
jerome.wenger@fresnel.fr
Mesure interférométrique directe du bruit thermique des composants multidiélectriques des détecteurs d’ondes gravitationnelles.
myriam.zerrad@fresnel.fr
Apply now & before March 28, for a PhD start in October 2023 !
Auditions will be held in May 2023 at the Lab and then at the Doctoral School if your application is selected. The application file must include the following documents
CV
Letter of intent
2 letters of recommendation
copies of diplomas (with translation if necessary)
transcripts of grades (with translation if necessary)
Microwave scattering measurements of analogs of dusts from planet-forming disks to improve knowledge of the planet formation process
Background : This thesis will be carried out as part of the interdisciplinary Dust2Planets project, which aims to study the early stages of planets formation, in particular the growth of dust in protoplanetary discs. Through an innovative approach, which consists in characterizing the optical properties of analogs of such dust particles with microwaves, we will study the signatures of dust growth in proto-planetary discs. Indeed, as the exact growth processes are poorly known, any new direct information, particularly on centimetric dust, will be fundamental.
Objectives : One of the major aims of the PhD work is to enrich our database (EMSCOP) of scattering properties, initiated in a previous PhD work, with measurements of new dust analogs made by 3D printing. These analogs will have realistic and controlled shapes and sizes. Their interactions with electromagnetic waves will be measured in our totally renewed anechoic chamber. These scattering measurements will serve as input to radiative transfer codes to simulate disk images. The results will also be used to quantify the shape and size of the dust particles in the discs and the benefits of the project are numerous and extend beyond astrophysics
Financing : ERC Adv. Grant Dust2Planets
Thesis Director : Amélie Litman
Co-supervisors : Jean-Michel Geffrin (Institut Fresnel) , François Ménard (IPAG)
Main place of activity : Institut Fresnel, Marseille
Contact : J-M Geffrin : jean-michel.geffrin@fresnel.fr
Thesis Offer - Optimal imaging & biomechanics
Description : Optical diagnosis of biomechanical properties of the human cornea: application to the early detection of keratoconus and to the identification of old keratoplasty.
Lab : Institut Fresnel, Marseille
Supervisors : Julien Fade, MCF HDR, ECM, DiMABio group, Institut Fresnel & Olivier Boiron, PR ECM, IRPHE & Laure Siozade-Lamoine, MCF AMU, Institut Fresnel
Partners : Thierry David / Loïc Dambricourt, AP-HM, Service d’Ophtalmologie, CHU La Timone Marseille
Place : Institut Fresnel, Domaine Universitaire de Saint Jérôme, 13013 Marseille et Plateau Technique Imagerie Optique, CERIMED, La Timone, Marseille
Duration : 36 months from September-October 2023
Contact : julien.fade@fresnel.fr - Phone : +33 (0)4 13 95 54 94
In vivo studies of biomineralization by nonlinear coherent Raman optical microscopy
Description : The thesis will take place at the Fresnel Institute, on the Saint Jérôme campus. The student
will join
the Mosaic team, in collaboration with the Comix team, the IFREMER group in Montpellier and the
Monaco Scientific Center. During the thesis, the student will have to develop the experimental
coherent Raman microscopy experimental device adapted to the constraints of in vivo observation.
Live animals will be received in the laboratory and raised in the aquarium at the Institute. The
objective of the thesis is to develop the protocol allowing the in vivo imaging of the calcifying tissue
of the living animals, to conduct the first in vivo biomineralization experiments and to compare the
observations with the literature in order to propose an interpretation of the results.
Laboratory : Institut Fresnel, CNRS, Marseille
Thesis supervisor : Duboisset Julien (HDR)
Co-supervisor : Chamard Virginie (HDR)
Email : julien.duboisset@fresnel.fr virginie.chamard@fresnel.fr
Adress : Institut Fresnel, Domaine Universitaire de Saint Jérôme, 13397 Marseille, France
Tel : +33 413945482
Development and validation of 3D signal reconstruction algorithms for fluorescence tomography in the second biological window (SWIR)
Subjet : Thesis in the field of modeling and image processing for biomedical optical imaging. The mission is part of a collaborative project between the Institut Fresnel in Marseille, the Optimal platform of the Institute for the Advancement of Biosciences (IAB) in Grenoble, and the company Kaer Labs in Nantes, for the development of a fluorescence tomography system in the second biological window. The mission of the PhD student will be to develop 3D reconstruction algorithms for the localization of fluorescence sources.
The PhD project concerns the development of a reconstruction algorithm exploiting fluorescence images from a small animal fluorescence imaging system.
More details & Profile required : See attached document
Fundings : Thèse CIFRE avec KAER LABS
Duration : 36 mois
Contact :
Anabela Da Silva - DR CNRS, research team DiMABio, Institut Fresnel / CERIMED - Tel : +33 4 13 94 54 79
Company Manager : Pierre-Alix Dancer(CEO)
Développement de filtres optiques interférentiels à faible absorption pour les lasers de puissance
Subject: Lasers of high continuous power have a very wide range of industrial, military and scientific applications,
military and scientific applications. Among the various optical components of a laser system, filters based on optical thin films are
Among the various optical components of a laser system, filters based on optical thin films are key elements to functionalize the surfaces (anti-reflection,
mirrors, dichroics). Despite absorption levels that can go down to the order of
part per million (ppm) in the layers, the heating induced under high laser power is a limitation for the
constitute a limitation for the laser performances, ranging from wavefront deformation to eventual damage of the
damage to the optics. In a context of increasing power of laser sources
sources, the objective of the thesis is the development of components allowing to limit the thermal effects, by
thermal effects, by optimizing manufacturing technologies (choice of materials and deposition parameters), by optimizing
(choice of materials and deposition parameters), by optimizing designs (minimization of electric fields), and by controlling the
local absorption of components (by creating a controlled absorption profile for example in order to
uniform spatial distribution of absorbed energy).
Funding: CIFRE
Duration: 36 months - start as soon as possible
Contact : Laurent Gallais, Catherine Grèzes-Besset, Julien Lumeau
Tel. : +33 6 20 98 69 46 / +33 4 42 36 97 08 / +33 6 72 28 90 71
e-mail : laurent.gallais@fresnel.fr / GREZES-BESSET@cilas.com / julien.lumeau@fresnel.fr
Advanced numerical modeling of nonlinear photonic components
Title : Advanced numerical modeling of nonlinear photonic components
Place : Insitut Fresnel
Supervisors : Hervé Tortel (Professor), Anne-Laure Fehrembach (Assistant professor), Evgueni
Popov (Professor)
Funding : DGA/AMU (starting date september/october 2022)
Candidate profile : students interrested in the numerical modeling of physical phenomena
Application : CV and master gardes 15 april 2022
contacts : Hervé Tortel, Anne-Laure Fehrembach
Improving the lifetime of optics for high power lasers in space
Title : Improving the lifetime of optics for high power lasers in space
Location : Institut Fresnel, Marseille, France.
Requirements : MASTER in material science / physical chemistry / physics; knowledge of
surface analyzing techniques is recommended, knowledge in optical instrumentation (lasers)
appreciated.
Postulation deadline: March 31st 2022
Feedback date: mid-June (or before)
Starting date: October 1st 2022
Thesis Advisors : Franck WARGNER and Jean-Yves NATOLI
Responsible person at the French space agency (CNES):
Delphine FAYE
DCT/AQ/LE
Non-diffractive Bessel beams for near-field wireless RF link: modelization, synthesis, dynamic control and self-healing
Qualifications: the candidate must have a master degree in Physics or Photonics, with a strong background in electromagnetism and optics. Programing skills in matlab are expected, and prepare to deal with programs in Fortran. Radio-frequency engineering and antenna knowledge are welcome.
Laboratory : Institut Fresnel, UMR-CNRS 7249, CONCEPT team
Context : ANR LinkALL project (IETR/Institut Fresnel /Thales Resesarch and Technology)
Period: 3 years doctoral contract starting the last trimester of 2021-
PhD supervisors : G. Soriano, C. Amra, M. Zerrad
PhD supervisors: G. Soriano, C. Amra, M. Zerrad
Application : Send Resume and transcript of records to myriam.zerrad@fresnel.fr
Advanced numerical modeling of nonlinear photonic components
Thesis Director : Hervé Tortel, Anne Laure Fehrembach
Place : Institut Fresnel
Fundings : DGA / AMU
European citizen only
Analysis of light scattered by localized defects and contamination
Thesis Director : Myriam Zerrad, myriam.zerrad@fresnel.fr
Place : Équipe Concept - Institut Fresnel
Fundings : CNES
Send CV and Letter to myriam.zerrad@fresnel.fr before March 10, 2021
RF cloaking for desensitisation of close and/or co-located antennas Application in the smallsats context
Subject description :
The development of projects using small platforms (smallsat or nanosat), whether for constellations (Oneweb, Kinéis, ...) or short duration missions (Entrysat, MarCO, ...), leads space actors to a race for miniaturization, and to the reduction of costs, platform equipment and payload instruments. From a radiofrequency point of view, this is not without consequences on the performance of the various telecommunication links. Indeed, this advanced miniaturisation has two complementary adverse effects :
A decrease in available on-board power. This reduces margins and therefore requires antennas to be particularly efficient once they are on board the satellite.
A significant reduction in the available surface area on the sides, which means that the radiating elements take up less space and are closer to each other.
This proximity can lead to a total or partial destruction of antenna performance (mismatch, pattern distortion, degradation of polarization purity, losses ...) that must be studied and compensated for. In this respect, there are in the literature some examples of strategies to solve these problems. It has been shown in [1] that the pattern of a monopole antenna disturbed by the presence of another monopoly placed nearby could be reconstructed by adding a "cloak of invisibility" around the disturbing antenna in order to make it invisible. This promising cloaking technique [1-3] can be used in a spatial context where, on small platforms, antenna co-location is strong.
Thesis advisor : Stefan ENOCH, Institut Fresnel (Aix-Marseille Université, CNRS, Centrale Marseille)
Co-advisor : Nicolas MALLEJAC, CEA DAM Centre du Ripault
CNES supervisor : LAQUERBE Vincent, Service Antennes (DSO/RF/AN)
Ultra-sensitive stimulated Raman Microscopy
Summary :
The aim of this project is to develop an ultra-sensitive background free microscopy scheme for vibrational imaging by means of stimulated Raman scattering (SRS) with application in chemistry, pharmacology and biomedical imaging.
Supervisor:
Hervé RIGNEAULT
Team :
MOSAIC
More details can be found at:
imabio-cnrs.fr
Start date : April 2019
End date: December 2019
Polarized Enhanced Coherent Raman Scattering
Summary :
The aim of this project is to exploit light polarization in nonlinear microscopy to optimize the matching efficiency between optical fields and molecular responses. It will bring novel solutions to background-free nonlinear imaging with enhanced sensitivity.
Supervisor :
Sophie BRASSELET
Team :
MOSAIC
2 available PhD positions (starting 2019) in the mosaic team in the frame of the MUSIQ H2020 EU ITN project : www.musiq-etn.eu
Start date : April 2019
End date: December 2019
Optical imaging deep in scattering media
Resume :
Adaptive optics, optimizes a wavefront using nonlinear generated signal as a feedback. In this project, we want to develop an adaptive optics approach to non-linear microsscopy.
Team :
MOSAIC
Supervisors:
Sophie BRASSELET
Dmitry NUZHDIN
Start date of the offer : 1st April 2019
End date of the offer : 30th september 2019
Optical transport properties of a mouse spinal cords
Resume :
The goal of this project is to reproduce the techniqe in the lab of MOSAIC group, creating a new setup for in situ routine study of mouse spinal cord scattering properties.
Team :
MOSAIC
Supervisors:
Sophie BRASSELET
Dmitry NUZHDIN
Start date of the offer : 1st April 2019
End date of the offer : 30th september 2019
Biological tissue modeling for non-linear microscopy applications
Resume :
We model light propagation in biological tissue using finite-difference time domain method to understand the intrisic properties of the model system (i.e. mouse spinal cord) and to be able to simulate it without need for an actual experiment.
Team :
MOSAIC
Supervisors:
Sophie BRASSELET
Dmitry NUZHDIN
Start date of the offer : 1st April 2019
End date of the offer : 30th september 2019
Inner structure imaging of small solar bodies
Abstract :
This Phd thesis aims to develop new approaches for imaging large structures, with an application to small bodies of the solar system.
Team :
HIPE
Supervisor :
Christelle EYRAUD
Development of broadband and monochromatic optical monitoring strategies for magnetron sputtering depositions
Abstract :
In this thesis, we propose to explore the combination of both monochromatic and broadband optical monitoring techniques. These developments will be done in collaboration between the Thin Film Research Team at institut Fresnel in Marseille and Bühler company.
Supervisors : Dr Thomas Begou and Julien Lumeau at Institut Fresnel
Dr Harro Hagedorn and Detlev Arhilger at Bühler Alzenau
Apply at : Julien LUMEAU
Team : RCMO
Understanding the nanoscale correlation between morpho-chemical, mechanical and optical properties of plant cell walls toward biofuel applications
Abstract :
The aim here is to investigate the morphological, chemical, mechanical and optical properties of wood sheets constraint to abiotic stresses directly acting on the tree/branch growth.
Superviseurs : Anne CHARRIER and Aude LEREU
Engineering light scattering in optical interference coatings
supervisors : Myriam ZERRAD
Michel LEQUIME
Claude AMRA