SPIN Centre for Chemical Engineering

Raman confocal microscope

Working principle / output

Raman spectrometry is used to determine the chemical nature of a sample, its molecular structure and crystallinity. It is a non-destructive technique, based on the measurement of the atomic/molecular vibration frequencies of materials under the impulse of a laser beam. Raman analysis is based on the same principle as Fourier Transform InfraRed (FTIR) spectroscopy but with a better spatial resolution. Qualitative (or even semi-quantitative) measurements can be made on solid, liquid or gaseous samples, both of organic and inorganic origin.

Key features

  • Model: Horiba Jobin Yvon XploRA
  • Spatial resolution: < 2 µm (lateral) and < 5 µm (depth)
  • Spectral range: 100 – 4000 cm-1
  • Three lasers (532, 638, 785 nm) and four gratings (600, 1200, 1800, 2400 l/mm)
  • X-Superhead-532 probe with optical fiber for remote measurements with laser excitation at 532 nm
  • Microthermal analysis cell working up to 1500°C
  • Olympus BX41 optical microscope equipped with three objectives (10x, 50x, 100x) and a high definition camera (with white light in reflection and transmission)
  • Czerny-Turner monochromator and multi-channel CCD detector cooled by Peltier effect
  • Motorized XYZ microscope stage


Feel free to contact Steve PEUBLE for further information (click to send Email).