Vortex Optiques : Défis et Potentiels pour les Systèmes d'Imagerie // Optical Vortices : Challenges and Potentials for Imaging Systems
- Talence, Gironde
- CDD
- Temps-plein
[2] Xiao, N. et al. Opt. Express 29, 19975-19984 (2021)
[3] Eshaghi, M. et al., Sci Rep 12, 10428 (2022).
[4] Galinier, L et al. Optica 11, 238-244 (2024)Optical vortices, explored across various disciplines for three decades, have found limited applications in imaging beyond microscopy for single molecule localization through depth encoding [1]. However, they unveil a unique capability for sudden self-focusing [2] and stability [3], opening promising avenues for the optimization of imaging systems. Our recent research has demonstrated that integrating optical vortices into conventional lenses facilitates the creation of innovative focusing techniques [4].The primary goal of this thesis project is to delve into how the unique properties of optical vortices can be harnessed to enrich current image formation techniques. This will include a comprehensive study of the mechanisms behind sudden self-focusing and an assessment of image generation stability and precision in the presence of these vortices [3]. Special emphasis will be placed on the influence of different types of optical vortices on image quality, focusing on their ability to minimize aberrations and enhance resolution and depth of field.The methodology of this research will balance theoretical work, numerical simulations, and experimentation. The initial phase will involve developing mathematical models and conducting simulations to predict the behavior of optical vortices in various imaging scenarios.The second phase will focus on the experimental characterization of lens performance, fabricated according to our specifications by our partner, Spiral SAS, utilizing advanced optical techniques such as wavefront analysis, to ascertain the impact of optical vortices on image quality.These research efforts could lead to significant advancements in fields requiring high-quality imaging and precise light manipulation, such as medical imaging, wearable technologies, and vision systems for autonomous vehicles. By pioneering in enhancing optical performance through the exploitation of optical vortices, this thesis aims to innovate technological design to meet the challenges of miniaturization and increased efficiency in lens design.References:
[1] Shen, Y. et al. Light Sci Appl 8, 90 (2019).
[2] Xiao, N. et al. Opt. Express 29, 19975-19984 (2021)
[3] Eshaghi, M. et al., Sci Rep 12, 10428 (2022).
[4] Galinier, L et al. Optica 11, 238-244 (2024)Début de la thèse : 01/10/2024Funding category: Contrat doctoral
MESRI
PHD Country: FranceRequirementsSpecific Requirements*Formation : - Master en physique, optique, photonique, ingénierie optique ou dans un domaine connexe. *Compétences techniques : - Optique instrumentale. - Simulation numérique et modélisation, en particulier avec MATLAB ou Python. - Traitement d'images et analyse de données. *Langues : - Anglais : C1 - Français (non requis mais apprécié)
*Education : - A Master's degree in Physics, Optics, Photonics, Optical Engineering. *Technical Skills : -Instrumental Optics -Numerical Simulation and Modeling, particularly using MATLAB or Python. -Image Processing and Data Analysis. *Languages: -English : C1 level -French (not required but appreciated)Additional InformationWork Location(s)Number of offers available 1 Company/Institute Université de Bordeaux Country France City TALENCE GeofieldWhere to apply WebsiteSTATUS: EXPIRED
EURAXESS