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Thesis Offers

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New PhD positions for oct. 2021
19-03-2021 - Thesis Offers

Apply now & before March 29th 2021, for a PhD start in October 2021 !

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

ALONSO, BRASSELET


- Nanoscale polarized imaging in 3D
miguel.alonso@fresnel.fr and sophie.brasselet@fresnel.fr

WOJAK


- Méthodes de diagonalisation conjointe et de décompositions tensorielles pour la détection précoce de la maladie d’Alzheimer par analyse d’images scintigraphiques.
julien.wojak@univ-amu.fr mouloud.adel@univ-amu.fr and remi.andre@univ-amu.fr

BAFFOU


- Caractérisation de nanoparticules par imagerie de phase quantitative - guillaume.baffou@fresnel.fr


BONOD


- Design inverse assisté par méthodes d’apprentissage de métasurfaces et
composants photoniques. nicolas.bonod@fresnel.fr

CHAIGNE


- Photoacoustic imaging of neuronal activity in mice - thomas.chaigne@fresnel.fr

DUBOISSET 1


- Études in vivo de la biominéralisation calcaire par microscopie optique non-linéraire julien.duboisset@fresnel.fr

DUBOISSET 2


- Étude de la structure de l’eau par optique non linéaire. julien.duboisset@fresnel.fr

KHALIGHI 1


- Liaisons air-mer haut-débit utilisant des transmissions hybrides RF/optique
Ali.Khalighi@fresnel.fr

KHALIGHI 2


- Communications laser pour des réseaux de microsatellites
Ali.Khalighi@fresnel.fr

LEGOFF


- Metabolic requirements of cancer stem cells activities
legoff@fresnel.fr

LEREU


- Étude des modes vibrationnels s-SNOM aux hautes harmoniques pour l’imagerie en profondeur - aude.lereu@fresnel.fr and julien.lumeau@fresnel.fr

WAGNER


- Study of light-matter interaction in optical materials under high intensity ultraviolet nanosecond multipulse irradiation
frank.wagner@fresnel.fr

CASSIER, GRALAK


- Modeling of dispersive electromagnetic resonators from modal expansion
maxence.cassier@fresnel.fr and boris.gralak@fresnel.fr

ZOLLA


- Photonic of non-linear media : Application to the redefinition of the non-linear susceptiblities of highly dispersive and anisotropic nanostructures.
gilles.renversez@fresnel.fr and frederic.zolla@fresnel.fr

FOSSATI


- Détection et classification d’objets rares par les réseaux de neurones convolutifs dans des images multidimensionnelles.
caroline.fossati@fresnel.fr

Apply now & before March 29 for a PhD start in October 2021 !

Download :
Advanced numerical modeling of nonlinear photonic components
15-03-2021 - Thesis Offers

Thesis Director : Hervé Tortel, Anne Laure Fehrembach

Place : Institut Fresnel

Fundings : DGA / AMU

European citizen only

RF cloaking for desensitisation of close and/or co-located antennas Application in the smallsats context
15-04-2020 - Thesis Offers

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)

Download :
Ultra-sensitive stimulated Raman Microscopy
02-04-2019 - Thesis Offers

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
02-04-2019 - Thesis Offers

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

Download :
Optical imaging deep in scattering media
21-03-2019 - Thesis Offers

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
21-03-2019 - Thesis Offers

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
21-03-2019 - Thesis Offers

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
18-01-2019 - Thesis Offers

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
02-10-2018 - Thesis Offers

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
04-09-2018 - Thesis Offers

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

Team : CONCEPT and CINAM

Engineering light scattering in optical interference coatings
04-09-2018 - Thesis Offers

supervisors : Myriam ZERRAD
Michel LEQUIME
Claude AMRA