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Raman spectroscopy

Spectroscopie Raman

Raman spectroscopy

The laboratory is equipped with two LabRAM and LabRAM HR -type microspectrometers (Horiba Jobin Yvon) for localized analysis, sample mapping and combined Raman-spectroscopy/microthermometry analysis. The available excitation wavelengths are 457 nm, 488 nm, 514 nm, 660 nm, and 785 nm.

Two RXN1 spectrometers (Kaiser Optical Systems, Inc.) equipped with Nd-YAG lasers (532 nm) are dedicated to the monitoring of reaction processes using either one or two optical immersion probes or an autoclave equipped with a sapphire window.

LabRAM Raman microspectrometer (Horiba Jobin Yvon) equipped with a THMS600 microthermometric stage (Linkam).

LabRAM HR Raman microspectrometer (Horiba Jobin Yvon)

RXN1 Raman spectrometer and optical immersion probe (Kaiser Optical Systems)

Services:

Analyses are usually carried out by the applicants themselves, after training in the use of the spectrometers (1/2 day).

Localized mineralogical analysis (µm):

  • thin, thick and polished sections
  • raw samples
  • powders



Aqueous fluid inclusion analysis:

  • speciation of molecular species (anions, cations, dissolved gases)
  • salinity determination (NaCl or CaCl2 media)
  • speciation of gaseous species (dissolved and in the vapour phase)
  • mineralogical identification of solid inclusions

Raman spectroscopy combined with microthermometry