PhD position in Ultrafast Molecular Dynamics at the Institut Lumiere Matiere Lyon, France

Unveiling ultrafast dynamics in complex systems with ultrashort XUV pulses  

Job profile : For the past decade, the emergent field of attoscience has opened up unprecedented opportunities to observe the motion of the fundamental constituents of matter, such as electrons and nuclei, in ‘real time’. While such experiments in the gas phase have so far been limited to atoms and simple molecules, at the Multiscale Structure & Dynamics of Complex Molecules (DYNAMO) group we are investigating these processes in much more complex systems that are relevant to astrochemistry and biochemistry. For this purpose, we use light-sources based on high-order harmonic generation (HHG) providing attosecond (1 as = 10^-18 s) pulses in the eXtreme Ultra-Violet (XUV) regime with photon energies ranging from 12 to 120 eV. These ultrashort pulses can be used either as a ‘pump’ to initiate a photo-excitation process or as a ‘probe’ to understand the relaxation process from an already excited state. Several beamlines delivering attosecond XUV pulses, along with spectrometers for detecting charged particles and photons are readily available in the group for studying electronic correlation, non-adiabatic dynamics, coherence etc. in light-matter interaction. Details of the activities in the group can be found here: https://ilm.univ-lyon1.fr/dynamo.

 

Work duties :The project consists of understanding charge transfer and photo-isomerization processes in complex molecules, induced by XUV radiation. Of particular interests is the dynamics for which the mechanism is non-adiabatic. The student will have a highly stable, commercial femtosecond laser system and a state-of-the-art velocity map imaging (VMI) spectrometer at disposal to carry out the project. He/she/they will receive rigorous training in the emerging field of attosecond molecular science and will develop a set of interdisciplinary skills, ranging from molecular physics and quantum chemistry, to ultrafast optics. The group has well-ground scientific collaboration, both at the national and international levels, which will enhance the networking capabilities of the student. The successful candidate is expected to optimize the existing set-up, develop new techniques for carrying out the proposed experiments, participate in the interpretation of the data, interact with fellow researchers in the research group and contribute to meetings and discussions.

 

Please send your application with CV, a motivational letter, the names and contact addresses of two references to Dr. Franck Lépine (franck.lepine@univ-lyon1.fr) and/or, Dr. Saikat Nandi (saikat.nandi@univ-lyon1.fr).