Open post-doc position in the field of time-resolved coherent Raman spectroscopy, University of Rome, Italy

We would like to announce an open post-doc position in the field of time-resolved coherent Raman spectroscopy in the “Femtoscopy” group at the Physics Department of “Sapienza” University of Rome.

Photophysical events and chemical reactions are ruled by the interplay of transient vibrational and electronic transitions, as determined by multidimensional surfaces which describe how the vibrational energy changes on a given electronic configuration. Mapping these surfaces over multiple vibrational dimensions requires spectroscopic probes capable of detecting different energy scales with high temporal and spectral resolution. Recently, we demonstrated a three-color 2-Dimensional Impulsively Stimulated Resonant Raman Scattering (2D-ISRS) [1] approach able to reveal the vibronic couplings ruling ultrafast chemical phenomena. 

The research activity will be focused on the development and the application of a 2D-ISRS apparatus, with wisely shaped pump and probe pulses for dissecting vibrational signatures. The 2D Raman scheme, jointly with our Femtosecond Stimulated Raman Scattering (FSRS) and Impulsive Vibrational Scattering (IVS) setups (for performing pump-probe vibrational spectroscopy with simultaneous time precision of ~10fs and spectral resolution of ~10cm-1), will be applied to develop your own research within the areas of interest of the group, including, but not limited to:

- Photoinduced relaxation in Lead Halide Perovskite: lattice dynamics upon photocarrier injection probed by impulsive Raman spectroscopy [2];
- Ultrafast processes in biomolecules: time-resolved Raman spectroscopy of Hemeproteins, conjugated molecules and photosynthetic complexes [3,4];
- Time-resolved Raman micro-spectroscopy of 2D materials: heterostructures of graphene and transition metal dichalcogenides [5].
Initial appointment is for 1 year with possible extension upon mutual consent.  
 
Your profile:
Candidates with hands on background in linear and non-linear optics are encouraged to apply. 

Previous experiences with ultrafast lasers and/or coherent and/or time-resolved Raman spectroscopy and/or transient absorption are highly appreciated. Excellent communication skills and team spirit are required.
 
For an overview of our current research see: http://femtoscopy.org/index.php/Research-Articles/Research-Articles.html
 
Applications (including CV, list of publications and contacts of at least two references) should be addressed by email to: tullio.scopigno@uniroma1.it

  1. Fumero, G. et al. Two-Dimensional Impulsively Stimulated Resonant Raman Spectroscopy of Molecular Excited States. Phys. Rev. X 10, 011051 (2020).
  2. Batignani, G. et al. Probing femtosecond lattice displacement upon photo-carrier generation in lead halide perovskite. Nat. Commun. 9, 1–5 (2018).
  3. Ferrante, C., Pontecorvo, E., Cerullo, G., Vos, M. H. & Scopigno, T. Direct observation of subpicosecond vibrational dynamics in photoexcited myoglobin. Nat. Chem. 8, 1137 (2016).
  4. Batignani, G. et al. Visualizing Excited-State Dynamics of a Diaryl Thiophene: Femtosecond Stimulated Raman Scattering as a Probe of Conjugated Molecules. J. Phys. Chem. Lett. 7, 2981–2988 (2017).
  5. Ferrante, C. et al., Raman spectroscopy of graphene under ultrafast laser excitation, Nat. Commun., 9, 308, (2018).