Inelastic Ultraviolet Scattering with tunable light source (IUVS)
Elettra Sincrotrone Trieste
UV Resonance Raman (UVRR) spectroscopy is a very valuable tool for collecting chemically specific information about a large variety of systems thanks to the simultaneous coupling of electromagnetic radiation with the electronic charge localized in particular chromophoric groups of molecules. This second-order coupling is extraordinarily sensitive to molecular structure and environment making UVRR a very high-information content spectroscopy. The high selectivity and the increment of the resonance Raman cross section for vibrations localized within specific chromophoric groups that are excited in the sample enable trace detection methodologies, non-invasive study of structure and dynamics of soft matter, molecular liquids, biological systems under physiological conditions, analysis of electronic properties of nanostructures and strongly correlated materials, characterization of microheterogeneous systems for diagnostic purposes, real-time monitoring chemical reactions for catalysis, analysis of materials of interest for cultural heritage and investigation of graphene-related systems.
Technical specifications
The UVRR setup available on IUVS enables to perform UV Resonance Raman spectroscopy experiments using a fully tunable laser source with emission in the ranges 191-315 nm and 350-475 nm. The analyser system is composed by three interconnected Czerny-Turner spectrometer (Trivista system, Princeton Instruments) with focal length of 500 mm, 500 mm and 750 mm respectively. The three spectrometers have been coupled to work both in additive and subtractive configurations. The backscattering configuration and the geometrical characteristics of the Raman set-up allow the use of a large variety of sample environments. For measurements of liquids and/or aqueous solution, we have employed a specific sample holder, able to thermalize the sample in a temperature range of 5-120 °C.
For more detailed information visit the beamline’s main homepage
Information for users
We invite users and collaborators to discuss their proposals with the beamline local contacts well in advance before the submission deadline. This is crucial for a careful assessment of the experiment feasibility and may lead to improvements in the proposed experimental plan. In a restricted number of cases, when doubts arise about the suitability of your samples (sample absorption etc), it may be possible for you to arrange a test.
Contact:
Tel: +39 040 375 8093 (office) | +39 040 375 8726/8716 (beamline)
Tel: +39 040 375 8042 (office) | +39 040 375 8726/8716 (beamline)
Tel: +39 040 375 8837 (office) | +39 040 375 8726/8716 (beamline)
CURRENTLY THE IUVS BEAMLINE IS NOT AVAILABLE TO USERS DUE TO IMPORTANT UPGRADE INSTRUMENTATION, WE EXPECT IT WILL BE OPEN AGAIN TO USERS IN SPRING 2025