Scientific Calendar Event

Starts 14 Dec 2022 11:00
Ends 14 Dec 2022 12:00
Central European Time
Hybrid Seminar
Room H (Leonardo Building) + Zoom

Barbara Rossi
(Elettra Sincrotrone Trieste)

Raman spectroscopy is a non-destructive experimental technique widely implemented in the laboratories for the molecular characterization of several kind of systems, including condensed matter, liquids, gels, aqueous solutions, polymers and bio-macromolecules, through the investigation of their vibrational dynamics. Thanks to the resonance effect, UV Resonance Raman (UVRR) spectroscopy offers several advantages with respect to conventional visible Raman technique, such as the significant increment of the detection limit and the selectivity needed to incisively monitor specific chromospheres within the sample. This determines the usefulness of UVRR spectroscopy as highly sensitive and selective spectral probe for exploring the structure and dynamics of complex molecular systems. However, the full exploitation of UVRR has so far been limited by the lack of extended and tuneable excitation sources in the UV range that allow to finely approach the resonance conditions of specific targeted molecular groups.  In this seminar, we would like to give an overview on the opportunities offered by the unique in the world UVRR setup working with the synchrotron radiation (SR) source available at the BL10.2-IUVS beamline (Elettra synchrotron facility, Trieste, Italy). The SR-based UVRR set-up at Elettra enables to perform UVRR experiments with a fine tuneable source in the range of excitation wavelengths 200-270 nm, resulting in an innovative spectroscopy facility for approaching open issues in physics, chemistry, materials and life sciences. Selected case studies will be discussed in order to show the useful of SR-based UVRR method and the areas of interactions with other research interests.