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Raman spectroscopy laboratory

The laboratory is equipped with two confocal high-resolution Raman spectrometer systems to study fluid and solid samples (from single point analyses and line scans to two- and three-dimensional Raman imaging) at ambient pressure and temperature and over a wide range of P-T conditions.


Olympus BX41 microscope

motorized XY microscope stage
CCD detector (1024 x 256 pixel)

excitation wavelengths:

  • 325 nm (HeCd laser)
  • 488 nm (Ar+ laser)
  • 514.5 nm (Ar+ laser)
  • 633 nm (HeNe Laser)

gratings 1800 l/mm or 2400 l/mm
edge filters for 488 nm and 514.5 nm
notch filters for 325 nm and 633 nm

HORIBA Jobin Yvon LabRAM HR800 VIS

Olympus BXFM microscope with binocular and Koehler illumination motorized XYZ microscope stage, stepsize 0.1 µm in XY, 0.5 µm in Z) CCD detector (2048 x 512 pixel)

excitation wavelengths:

  • 473 nm (diode-pumped solid-state laser)
  • 532 nm (frequency doubled Nd:YAG laser)

gratings 1800 l/mm, 300 l/mm or 600 l/mm
edge filters for 473 nm and 532 nm

Available sample environments

  • Linkam THMS 600 (-196 to 600 °C)
  • Linkam TS1000 (ambient T to 1000 °C)
  • Linkam TS1500 (ambient T to 1500 °C)
  • 2 hydrothermal diamond-anvil cells (modified Bassett-type), with very low fluorescence diamonds (type Ia, or type IIa synthetic), for T and P to about 850 °C and to >3 GPa

various 20x, 40x, and 50x objectives with working distances ≥14.9 mm for measurements with heating/cooling stages or DACs

Fig. 1: Olympus BX41 microscope with motorized XY stage and sample excited by 514.5 nm laser

Fig. 2: Hydrothermal diamond-anvil cell on motorized XYZ stage of Olympus BXFM microscope, sample in HDAC excited by 473 nm laser

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