Center for Materials and Sensor Characterization

Jobin Yvon Horiba Confocal Raman Spectrometer

ramanThe confocal Raman spectrometer can be used for chemical identification, characterization of molecular structures, effects of bonding, stress on a sample and determination of crystallographic orientation of a sample.

  • Raman can be used to analyze aqueous solutions since it does not suffer from the large water absorption effects found with FT techniques
  • The intensity of spectral features in solution is directly proportional to the concentration of the particular species
  • Raman requires little or no sample preparation. It does not need the use of Nujol, or KBr matrices and is largely unaffected y sample cell materials such as glass
  • The use of a Raman microscope such as the LabRAM provides very high level of spatial resolution and depth discrimination, not found with the FT methods of analysis

The Raman spectrometer includes the following accessories

  • He-Ne laser with line excitation at 632 nm and 785 nm diode laser
  • Diffraction grating of 1800 g/mm and 600 g/mm
  • Confocal pinhole adjustable from 0 to 1500 µm
  • Olympus BX41 microscope with objectives 10x, 50x and 100x
  • CCD detector and optical imaging that enables to focus on individual particles as small as 10 µm in diameter
Last Updated: 6/27/22