General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRT-24-0585
Direction
DRT
Thesis topic details
Category
Technological challenges
Thesis topics
Development of a fully passive plenoptic thermal imaging system
Contract
Thèse
Job description
Low-resolution plenoptics is becoming widespread in visible imagers for applications such as autofocus, image post-processing and sometimes depth estimation. Its principle is based on the association of three main constitutive elements, a pixels-sized microlens array, a focal plane array of detectors and reconstruction algorithms.
Through this thesis, we would like to evaluate the possibility of achieving such a plenoptic function in the infrared range for uncooled detector technologies (micro-bolometer)
Within the Optics and PhoTonics Department (DOPT), the Thermal and THz Imaging Laboratory (LI2T) designs, develops, produces and characterizes thermal infrared imager technologies, which are then transferred to an industrial partner. As a doctoral student, your role will consist of:
- Establish preliminary specifications for micro lenses adapted with our detectors and with the application of autofocusing.
- Design and simulate the behavior of this micro-optics and propose original designs in refractive solution or in meta-surface
- Manufacture these micro-optics after evaluating the feasibility of these designs in partnership with the people in charge of manufacturing
- Implement an existing reconstruction algorithm that will be identified in the literature
- Characterize the micro-optics on a dedicated bench
To carry out these missions, you will be integrated into the LI2T laboratory where you will be able to interact with different people in order to familiarize yourself with micro bolometer technologies and where you will have access to the calculation resources of CEA Leti.
University / doctoral school
Thesis topic location
Site
Grenoble
Requester
Position start date
01/10/2024
Person to be contacted by the applicant
PERRILLAT-BOTTONET Thomas thomas.perrillat-bottonet@cea.fr
CEA
DRT/DOPT//LI2T
17 Av. des Martyrs, 38000 Grenoble
04.38.78.27.79
Tutor / Responsible thesis director
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