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Senior Lecturer, conducting his research in the theme "Chalcogenides and Glasses" of the Department of Chemistry of Materials, Nanostructures and Materials for Energy (Department D4) of the ICGM, and teacher in the Department of Materials of Polytech Montpellier.
Elected member of the board of the Club Microsensors Chimiques (CMC2) since 2019.
Member of the Scientific Committee of the GDR Chalco since January 2022.
I. By the way
* HDR Chemical Sciences, University of Montpellier. "From the study of Bistable Electron Magnetic Resonance in solids to the realization of waveguides for infrared integrated optics", defended on November 21, 2008.
Chair: Pr. Jean-Emmanuel Broquin – Rapporteurs: Pr. Jean-Luc Adam and Pr. Eugène Bychkov – Examiners: Pr. Frédéric Smektala and Dr. Annie Pradel.
* Ph.D. in Materials Sciences, P. and M. Curie (Paris VI), LCAES (Laboratoire de Chimie Appliquée de l'Etat Solide). "Bistable Electronic Magnetic Resonance in Solids: Search for New Materials and First Steps towards the Realization of Sets of Coupled Bistable Systems", defended on October 25, 1999.
Thesis supervisor: Pr. Didier Gourier – President: Pr. Michel Verdaguer – Rapporteurs: Pr. Philippe Barboux and Pr. François Beneu – Examiner: Pr. Gert Denninger.
* DEA in Materials Science, University P. and M. Curie (Paris VI), LCAES (Laboratory of Applied Chemistry of the Solid State): "Search for a giant hysteresis of electron paramagnetic resonance in solid solutions Ga2-2xIn2xO3–b", obtained with the mention Bien in 1996.
Internship director: Pr. Didier Gourier.
* Engineering degree in Chemistry, Chemistry Paris Tech (ex Ecole Nationale Supérieure de Chimie de Paris – ENSCP). Obtained July 9, 1996.
Teachings & Responsibilities
* Thermodynamics and Phase Equilibrium Diagrams in the 3rd year of the Materials Department of Polytech Montpellier
* Thin films in 5th year.
Responsibilities and animations in teaching:
* High School Relations Officer, Polytech Montpellier, University of Montpellier, since 2020
* Responsible for the follow-up of alumni of the Materials Department, Polytech Montpellier, University of Montpellier, since 2019. Organization of the Materials and Mechanics & Interactions days and the half-day of discovery of the professions.
* Head of the Materials Department, from 2015 to 2019
* Director of Studies of the Materials Department, from 2008 to 2015
* Pedagogical manager of the fourth year of the Materials Department, from 2004 to 2008
* Elected member of the CFVU and the CAC of the University of Montpellier, since 2018
* Elected member of the Disciplinary Council of Users and Staff of the University of Montpellier, since 2018
* Elected member of the Board of Directors of the University of Montpellier II, from September 2012 to October 2014
* Elected member of the Disciplinary Council of Users of the University of Montpellier II, from September 2012 to October 2014
* Elected member of the Polytech Montpellier School Council, from September 2012 to November 2016.
* Elected member of the Pool of Experts in section 33 of the University of Montpellier II, from 2008 to 2012.
Ii. Research activities
Functionalization of Ge-Se-Te layers: capture of streptavidin
Functionalization of Ge-Se-Te thin films with peptides or with biotinylated (3-aminopropyl)triethoxysilane (APTES), then capture of streptavidin. Followed by atomic force microscopy.
Study of chalcogenide glasses in the form of thin films for integrated infrared optical applications.
Due to their infrared transparency properties, low intrinsic losses and ease of forming, chalcogenide lenses are good candidates in the design of micro-components operating in the infrared. The targeted applications are the field of sciences of the universe, the field of telecommunications, environmental metrology, biology, or more recently agriculture, with, for example, the realization of optical micro-sensors for the characterization of spray deposits of phytosanitary products on plant organs, but also for the early detection of plant diseases.
As part of a contract with the European Space Agency (ESA), and in collaboration with Thalès Alenia Space, we have for example worked on the production of micro-components for space interferometry.
We have manufactured single-mode guides that can operate from 6 to 20 μm. This success was possible thanks to the presence of an engineer in the team, responsible for the layer deposition frames, the purchase of a thermal co-evaporation frame equipped with three sources and an ion machining frame, and the existence of a consortium including chemists from the University of Rennes 1, specialists in the design of micro-components from the IMEP in Grenoble and a group of opticians from Nancy.
With our experience in the realization of infrared waveguides, we then turned to the realization of micro-sensors for the control of the environment or for biology. Thanks to a comprehensive study of the Ge-Se-Te ternary system, we have isolated a range of compositions that are particularly attractive in terms of thermal stability, refractive index and transmission domain.
We then began the manufacture of various guiding structures from these compositions: straight guides, curved guides, Y junctions and Mach-Zehnder interferometers. All these structures were first optimized for operation at the telecommunications wavelength (1.55 μm) and then tested at 4.26 μm, the wavelength for absorbing carbon dioxide. We have indeed equipped ourselves with an optical characterization bench operating at this specific wavelength of 4.26 μm. The bench is hosted at the IES, and the optical characterizations were carried out with the help of Mr. Raphaël KRIBICH, lecturer in the PhoTéra team.
Finally, a few years ago, we began a new collaboration with ITAP, a unit of INRAE whose activities aim to develop technologies and methods for the agriculture of tomorrow. Our common goal is to try to develop optical sensors for the characterization of spray deposits of plant protection products on plant organs, but also for the early detection of plant diseases.For this last application, we are working with a Montpellier company, Mycea, which seeks natural solutions for plant health, and which has the ability to provide us with spores of different phytopathogenic fungi. We are trying to develop selective micro-sensors by integrating a specific waveguide functionalization step, in collaboration with the D3 department of the ICGM.
Collaborations & Contracts
Current collaborations with:
- the Optical Sensors for Complex Environments (COMiC) team of ITAP (technologies and methods for tomorrow's agriculture), joint INRAE/Montpellier Sup-Agro research unit
- the Photéra team of the IES (Institute of Electronics and Systems)
- ICGM Hybrid and Porous Materials (D3)
- Mycea, a company specialising in the search for natural solutions from the fungal kingdom to replace pesticides and chemical fertilisers in agriculture
- ICGM scientific manager of the ANR Microcap project, PRCE with INRAE (ANR leader: Ryad Bendoula), with IES (scientific manager: Raphaël Kribich) and Mycea. Start: October 1, 2022.
- Project leader Muse Optivit (2018-2021) => funding of a thesis (Bruno Robert, defended on November 22, 2021)
- Participation in the Integrated Optics project (2007-2014), under Thales Alenia Space contract n°1520002341 / CNRS contract n° 026834; in response to the European Space Agency's call for tenders ASP-06-DA-379. In collaboration with other university laboratories: IMEP and LAOG in Grenoble, SCR in Rennes and LEMTA in Nancy.
- Participation in a research project with Thales Alenia Space (2004-2006), under contract AAS-F n°B02166.
Iii. Scientific production