The laboratory is equipped with a micro-Raman Renishaw inVia spectrometer, accessible to researchers of the University of Rome La Sapienza and to external researchers for which Raman spectroscopy can be used as additional tool in their research.
Prof. Delia Gazzoli
Analysis on small amounts of ‘as received’ samples with no preparation.
Raman spectroscopy is a light scattering technique, described as a process where a photon of light interacts with vibrational and rotational modes of a molecule to produce scattered radiation of different wavelengths (Raman effect). It is a non-destructive technique suitable to study amorphous or crystalline materials and, therefore, of paramount interest in various fields of materials science and cultural heritage. Raman analysis provides information on the molecular composition, effects of bonding, chemical environment, phase and crystalline structure of various types of materials.
- Optical microscope Leika DLML, equipped with color camera for observation and image capture of the sample; set of optical objectives N-5x, 20x, 50x, 100x , 50x long working distance and XY manual shifter.
- Spectrophotometer (focal length 250 mm) scanning between 100 and 3200 cm-1, variable size laser spot, diffraction gratings 1400 and 1800 lines / mm), edge filters and air cooled (-70 ° C) CCD detector.
- Laser sources: Argon ion (514 and 488 nm, 50 mW) and solid state diode (785 nm, 300 mW).
- PC workstation: software WIRE 2.0 for spectra acquisition and processing.