2 Post-Doc positions are available at the
Laboratory for Ultrafast Spectroscopy, Physics Department, University of
Rome "Sapienza", I on the following topics:
POSITION #1: Ultrafast vibrational spectroscopy in biomolecules.
We recently developed a Femtosecond Stimulated Raman Scattering setup
operating in the range 320-520nm. It allows for pump-probe vibrational
spectroscopy with time resolution of ~40fs and energy resolution of
~10cm-1, and is therefore an ideal tool to address the dynamics of
intermediates involved in chemical reactions induced by an ultrafast
optical trigger in biomolecules.Further details can be found in this
recent paper:
http://femtoscopy.phys.uniroma1.it/scopigno/static/RES_ACT/my_papers/OPEX_19_1107.pdf
Candidates with hands on background in linear and non-linear optics, are
encouraged to apply. Previous experience with ultrafast lasers and/or
resonance Raman spectroscopy and/or transient absorption and/or
biochemistry of heme-proteins are highly appreciated.
Successful applicant is expected to prepare and carry out FSRS
experiments together with our team. Develop own research in the area of
sub picosecond structural dynamics.
POSITION #2: Picosecond Acoustics:
Building on a Ti:Sa regeneratively amplified laser source, we recently
developed a novel pump probe layout to study acoustic dynamics in
crystalline and amorphous materials in the range 40-400 GHz (Broadband
Picosecond Acoustics). An ultrashort, 800nm pulse generates a coherent
acoustic-like excitation induced by impulsive heating of a thin metallic
film coated on the sample. A delayed white light probe pulse is
reflected by the travelling acoustic wavepacket, and the scattered light
interferes with the reflection at the metal-sample interface generating
an oscillating signal. By imaging each spectral component of the probe
on a CCD we visualize the phonon propagation and measure sound velocity
and damping at a given frequency. The setup can be easily extended to
the study of optic-like excitations up to a few THz. Further details can
be found in this recent paper:
http://femtoscopy.phys.uniroma1.it/scopigno/static/RES_ACT/my_papers/APL_98_011901.pdf
Candidates with experimental background in phonon dynamics in disordered
and/or correlated systems are encouraged to apply. Previous hands on
experience with ultrafast time-resolved optical techniques and/or phonon
spectroscopies (Brillouin and Raman scattering, Inelastic X-ray and
Neutron Scattering) is highly appreciated
Successful applicant is expected to prepare and carry out BPA
experiments together with our team. Develop own research in the area of
high frequency dynamics in amorphous materials and/or correlated systems.
Both the position are for 2 years with possible extension upon mutual
consent. Net Salary is approx 1.7keuros/month.
Applications, along including a CV and names of 3 referees, should be
addressed to
[log in to unmask]
and will be considered immediately until the positions are filled.
For an overview of our research:
http://femtoscopy.phys.uniroma1.it/scopigno/index.php/Research-Topics/
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