Monochromator by Zolix Instruments

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The Omni-λ750i from Zolix Instruments is a Czerny-Turner Monochromator that has a focal length of 750 mm. It has a wavelength accuracy of ± 0.1 nm and wavelength repeatability of ± 0.01 nm. This monochromator has an aperture ratio of f/9.7 and a dispersion of 1.1 nm/mm (at 435.8 nm). It has an integrated PMT and CCD with a resolution of 0.028 nm (PMT) and 0.09 nm (CCD). This monochromator has a step size of 0.0025 nm and stray light of 1x10-5. It has a focal plane that measures 30 (W) x 14 (H) mm and an optical axis of 146 (H) mm.

The Omni-λ750i has a motorized or manual slit with a slit width of 0.01 mm - 3 mm and slit height of 2, 4, or 14 mm. It has an interchangeable triple grating turret mount with a grating size of 68 mm x 68 mm. This monochromator uses Labview driver software and can be controlled via a USB 2.0 & RS232 interfaces. It is available in a module that measures 800 mm x 338 mm x 218 mm and is ideal for fluorescence & Raman spectroscopy, light source characterization, photoluminescence, photochemistry, and imaging applications.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Zolix Instruments
  • Description
    750 mm Monochromator for Fluorescence & Raman Spectroscopy Applications


  • Applications
    Tunable Monochromatic Light Source, Detector Calibration System, Solar Cell Quantum Efficiency Measurement System, Raman Spectrometer, Fluorescence System

Connections & Interface

  • Interface
    USB 2.0, RS232

General Parameters

  • Monochromator Type
    UV Monochromator, VIS Monochromator, NIR Monochromator
  • Wavelength Range
    435.8 nm
  • Linear Dispersion :
    1.1 nm/mm
  • Focal Length
    750 mm
  • Aperture Ratio
  • Grating Groove Density :
    1200 g/mm
  • Grating Mount
    Interchangeable triple grating turret
  • Grating Size
    68 x 68 mm
  • Slit Height
    2 mm, 4 mm. 14 mm
  • Slit Resolution :
    0.028 nm (PMT), 0.09 nm (CCD)
  • Slit Width :
    0.01 to 3 mm
  • Stray Light
    1 x 10-5
  • Wavelength accuracy
    ±0.1 nm
  • Wavelength Reproducibility
    ±0.01 nm
  • Wavelength Step Size :
    0.0025 nm

Physical Properties

  • Dimension
    800 x 338 x 218 mm
  • Height
    146 mm
  • Weight
    32.5 kg

Technical Documents

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