PhD student (M/F) Additive manufacturing of photonic components by 2-photons polymerization

Job Description

Thesis Subject

Planar optical devices and fibered components (waveguides, Bragg mirrors, sensors, …) have revolutionized the field of photonics. Usually, such components are fabricated using complex facilities similar to those used in the domain of silicon devices. With the development of direct laser writing methods (such as 2 Photon polymerization), it is now possible to print transparent 3D devices with a submicron resolution (less than 50 nm) allowing to design novel functions or components that cannot be fabricated by usual means.
The subjects addressed in this PhD will concern the design and characterization of original photonic components printed on planar substrates or on the end face of single-core or multicore optical fibers for remote applications.

To print such tiny features whose dimensions are in the order of the light wavelength, an optimization of the printing process is also needed (such as: resin formulation, laser power and scanning speed, hatching and slicing distances). AI algorithms will be implemented to get best parameters and a corresponding fabrication database will be feed.
These activities will be developed in the framework of Equipex+ project hosted by the photonic team (Add4P) and the targeted PhotonIA project started in 2025 which is part of the National Priority research program and equipment (PEPR).

Your Work Environment

The PhLAM (UMR 8523 – Physics of Lasers, Atoms and Molecules) is a joint research unit under the supervision of the CNRS and the University of Lille. Founded in 1998, it is part of a Lille tradition spanning over sixty years in the study of light-matter interactions.
PhLAM's research covers a broad spectrum of topics: experimental and theoretical molecular physics, dynamics of complex systems, photonics, and quantum systems. At the interface of several disciplines (chemistry, mathematics, engineering, environmental and Earth sciences, biology, medicine, and materials science), the laboratory conducts both fundamental and applied research (https://phlam.univ-lille.fr).

The PhD will be conducted within the Photonics team and will benefit from the support of the FiberTech Lille technology center, particularly for the characterization of optical components and the fabrication of specialty optical fibers if necessary (https://fibertech.univ-lille.fr/fr/).

The PhD will be integrated into the Graduate School of Materials Science, Radiation and the Environment (SMRE). Opportunities for collaboration with laboratories participating in the Equipex Add4P project may also be considered.

Constraints and risks

The person recruited will be required to work in a cleanroom and will regularly use laser sources for the fabrication and characterization of optical components.

Compensation and benefits

Compensation

2300 € gross monthly

Annual leave and RTT

44 jours

Remote Working practice and compensation

Pratique et indemnisation du TT

Transport

Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€

About the offer

About the CNRS

The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.

CNRS

The research professions