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miniRaman spectrometer

World smallest Raman spectrometer

miniRaman spectrometer specification

miniRaman spectrometer has the following output specification:
  • lasers at the wavelength: 660 nm and 785 nm
  • laser power can vary between 2-30 mW at 660 nm, 15 to 150 mW at 785 nm
  • spectral range 2750-4500 cm-1 at 660 nm, 400-2500 cm-1 at 785 nm
  • spectral resolution 10-15 cm-1 (depending on a spectral range)
  • wavenumber accuracy ±2.5 cm-1

    miniRaman spectrometer sensitivity from laser at 785nm (determined as SNR of polystyrene spectrum)
    SNR should be in the range 250:1 to 350:1 from 785nm laser (spectral range 400-2700cm-1) at the following parameters:
  • laser wavelength: 785nm
  • laser power: 100mW
  • integration time: 0.1s
  • number of repetitions: 1
  • CMOS gain 25
  • CMOS binning: 8 pixels
  • objective: dry microlens
  • smoothing : non
  • background correction: 1500cm-1

    miniRaman spectrometer sensitivity from laser at 660nm (determined as SNR of polystyrene spectrum)
    SNR should be in the range 100:1 to 150:1 from 660nm laser (spectral range 2750-4500cm-1)
  • laser wavelength: 660nm
  • laser power: 32mW
  • integration time: 0.5s
  • number of repetitions: 1
  • CMOS gain 25
  • CMOS binning: 8 pixels
  • objective: dry microlens
  • smoothing : non
  • background correction: 1500cm-1
  • miniRaman MRs accessories:

  • long working distance probe, f=30mm (NA=0.05, laser spot size 50um)
  • middle working distance probe, f=15mm (NA=0.1, laser spot size 15um)
  • short working distance probe, f=6.25mm (NA=0.34, laser spot size 3um)
  • immersion probe; ideal for in-vivo skin measurements, direct contact measurements of powders and liquids (f=6.21mm, NA=0.38, spot size 2.5um)
  • sample holders
  • axial focusing accessories
  • light protection sample cover
  • objective covers
  • adapters for standard microscopy objectives (RMS, M25/0.75, M27/1)
  • If necessary, miniRaman MRs can be attached to the vertical positioning system for precise focusing on the sample surface and long term measurements