Digital Mini-Chrom Monochromator

Digital Mini-Chrom Monochromator

Digital Mini-Chrom Monochromator

The Digital Mini-Chrom Monochromator (DMC) is a manually operated monochromator that utilizes a digital counter for wavelength selection. Rotation of the dial causes, via a precision lead screw/ sine bar mechanism, rotation of the diffraction grating which positions the selected wavelength at the exit slit.

The wavelength on all digital Mini-Chroms can be selected and read to 0.2 nm. Wavelength is read directly in nanometers (nm) from a counter on models 01, 02, 03, 04 and 05. Near infrared model (06) requires the counter reading to be doubled.

Digital Mini-Chrom monochromators are used in a variety of applications that require a small yet high performance manually tuned monochromator. They are used in physics, chemistry, engineering and the life sciences applications where a low cost manually tuned device for precision wavelength selection is required.

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Product Listing


  • Digital Monochromator, 750 nm – 1.7 μ

    Digital Mini-Chrom Monochromator Specifications | DMC1-05

    Resolution with 1 mm slits

    15.40 nm

    Operating Range

    750 nm – 1.7 μ

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    0.77 nm

    Resolution with 100μ slits

    1.54 nm

    Resolution with 150μ slits

    2.31 nm

    Resolution with 300μ slits (included)

    4.62 nm

    Resolution with 600μ slits

    9.24 nm

    Grating Density

    830 grooves/mm

    Grating Blaze Wavelength

    1.2 µ

    Linear Dispersion (Center of Range)

    15.42 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    Operating Temperature Range

    -20° C to +80° C

    Damage Threshold: Pulsed

    350 mJ /cm², 200 nano sec. pulse

    Damage Threshold: CW laser

    40 Watt/cm²

  • Digital Monochromator, 850 nm – 2.2 μ

    Digital Mini-Chrom Monochromator Specifications | DMC1-06

    Resolution with 1 mm slits

    21.67 nm

    Operating Range

    850 nm – 2.2 μ

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    1.08 nm

    Resolution with 100μ slits

    2.17 nm

    Resolution with 150μ slits

    3.25 nm

    Resolution with 300μ slits (included)

    6.50 nm

    Resolution with 600μ slits

    13.00 nm

    Grating Density

    600 grooves/mm

    Grating Blaze Wavelength

    1.6 µ

    Linear Dispersion (Center of Range)

    21.73 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    Operating Temperature Range

    -20° C to +80° C

    Damage Threshold: Pulsed

    350 mJ /cm², 200 nano sec. pulse

    Damage Threshold: CW laser

    40 Watt/cm²