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Optical Emission Spectroscopy (OES)

Acton Spectra Pro 2300i Monochromator/Spectrograph Princeton Instruments

With Optical Emission Spectrocsopy technique (OES) the main plasma parameters can be calculated.

From the emission spectra we can identify:

  • the emitted species
  • the concentration of atoms and molecules in the excited states
  • the density of charged particles and neutrals in plasma
  • the temperatures of excited atomic and molecular states.


Main features: 

  • Focal length: 0.300 m
  • Optical design: Imaging Czerny-Turner with original polished aspheric mirrors
  • 3 interchangeable gratings: 150g/mm, 300g/mm, 1200g/mm
  • Scan range: 200nm - 1000nm
  • Dispersion: 2.7nm/mm
  • Accuracy: ±0.2nm
  • Focal plane size: 27mm wide x14mm high
  • Motorized slit