Envoyé par Frédéric Chevy 
lundi 17 janvier 2022 00:11:42
A 24 months postdoctoral position is available from the 1st April 2022 at the Chemistry Department of Ecole Normale Supérieure (ENS, Paris). The project, funded by the European Innovation Council, relies on a collaboration between L. Jullien and T. Le Saux from the group «Physical and Biological Chemistry of Living Matter» at ENS with expertise in dynamic contrast fluorescence imaging, [1-5] and S. Matsubara and U. Rascher from the Institute of Bio- and Geosciences Plant Sciences (IBG-2) at Forschungszentrum Jülich (Jülich, Germany) with expertise in the time and space dynamics of photosynthesis in higher plants [6-7].

At ENS, the candidate will build an optical instrument that will provide harmonically modulated or randomly fluctuating illuminations while enabling remote fluorescence imaging of plants. This instrument will be eventually implemented in a greenhouse at IBG-2 in a purpose of extracting kinetic fingerprints devoted to sensing applications.

Starting date is flexible from 1st April 2022. Net salary: 2600-3000 €/month.

Candidates should hold a PhD in optics and have a solid background for building optical instruments and interfacing them for data acquisition. A former experience in fluorescence imaging and image analysis will be appreciated.

To apply, please send a detailed resume including list of publications, the names of at least two referees and a brief motivation letter to the scientific coordinators of the project, Dr. Thomas Le Saux ( and Prof. Ludovic Jullien (

[1] J. Quérard, R. Zhang, Z. Kelemen, M.-A. Plamont, X. Xie, R. Chouket, I. Roemgens, Y. Korepina, S. Albright, E. Ipendey, M. Volovitch, H. L. Sladitschek, P. Neveu, L. Gissot, A. Gautier, J.-D. Faure, V. Croquette, T. Le Saux, L. Jullien, Resonant out-of-phase fluorescence microscopy and remote imaging overcome spectral limitations, Nat. Comm. 2017, 8, 969.
[2] R. Zhang, R. Chouket, M.-A. Plamont, Z. Kelemen, A. Espagne, A. G. Tebo, A. Gautier, L. Gissot, J.-D. Faure, L. Jullien, V. Croquette, T. Le Saux, Macroscale fluorescence imaging against autofluorescence under ambient light, Light: Science & Applications, 2018, 7, 97.
[3] R. Zhang, R. Chouket, A. G. Tebo, M.-A. Plamont, Z. Kelemen, L. Gissot, J.-D. Faure, A. Gautier, V. Croquette, L. Jullien, T. Le Saux, Simple imaging protocol for autofluorescence elimination and optical sectioning in fluorescence endomicroscopy, Optica, 2019, 6, 972.
[4] R. Chouket, A. Pellissier-Tanon, A. Lemarchand, A. Espagne, T. Le Saux, L. Jullien, Dynamic contrast for overcoming spectral interferences in fluorescence imaging, J. Phys.: Photonics, 2020, 2, 032003.
[5] R. Chouket, A. Pellissier-Tanon, A. Lahlou, R. Zhang, D. Kim, M.-A. Plamont, M. Zhang, X. Zhang, P. Xu, N. Desprat, D. Bourgeois, A. Espagne, A. Lemarchand, T. Le Saux, L. Jullien, Extra kinetic dimensions for label discrimination, Nat. Commun., to appear.
[6] K. Acebron, S. Matsubara, C. Jedmowski, D. Emin, O. Muller, U. Rascher, Diurnal dynamics of nonphotochemical quenching in Arabidopsis npq mutants assessed by solar‐induced fluorescence and reflectance measurements in the field, New Phytologist, 2021, 229, 2104-2119.
[7] M. Machwitz, R. Pieruschka, K. Berger, M. Schlerf, H. Aasen, S. Fahrner, J. Jiménez-Berni, F. Baret, U. Rascher, Bridging the Gap Between Remote Sensing and Plant Phenotyping—Challenges and Opportunities for the Next Generation of Sustainable Agriculture, Frontiers in plant science, 2021, 12.