MMS Family

Monolithical compact

MMS Family

Monolithic Miniature Spectrometer

  • Introduction

    The MMS spectrometer family delivers compact, robust measurement instruments. The spectrometer is equipped with a high performance detector for portable, process and OEM applications. The unique design provides permanent calibration and thermal stability to guarantee accurate and reliable measurements simultaneously for UV and NIR. The absence of any moving parts guarantees long lifetime and high durability.

    Components of the MMS family

    • Cross-section converter as optical input
    • Imaging grating
    • Diode array as opto-electronic output
    • Interfaces, processing software and support
  • Highlights

    Benefits

    • Reliable, permanently aligned
    • No movable parts
    • Robust, even in harsh environments
    • Compact
    • Fast, Simultaneous read-out
    • Permanently calibrated
    • High dynamic range
    • High light sensitivity
    • High reproducibility
    • Low temperature drift

     

     

     

  • Design
    • Equipped with the silicon photo diode array S3904-256Q from Hamamatsu (only the MMS 1 NIR enhanced spectrometer utilized with the S8381-256Q from Hamamatsu to achieve higher NIR sensitivity)
    • Arrays are packed in a shorter and special housing which results in a very small split-off angle
    • Diode array has been directly coated with a dielectric cut-off filter
    • Holographic blazed, flat field gratings (master grating has its efficiency maximum at approx. 220 nm)
    • Fixed grating, optimally protected against dust and gases
    • Central body contains a glass element similar to a lens (MMS 1)
    • Solid glass element has been replaced by hollow shell, attached to grating and detector (in UV sensitive modules)
    • Fiber-bundle cross-section converter optimizes the light sensitivity
    • Option of modifying fiber length and input design
    • Solarization resistant fiber to avoid transmission loss in the deep UV and to prevent fiber damage
  • Video
  • Specification
      MMS 1 MMS UV-VIS MMS UV
    Optical entrance Fiber bundle consisting of approx. 30 Quartz glass fibers with 70 µm core diameter each, designed as cross section converter
    		 Fiber bundle consisting of approx. 30 Quartz glass fibers with 70 µm core diameter each, designed as cross section converter
    		 Fiber bundle consisting of approx. 15 Quartz glass fibers with 70 µm core diameter each, designed as cross section converter
    Input round Diameter: 0.5 mm NA = 0.22 (has to be filled for full specification) mounted in SMA-coupling
    		 Diameter: 0.5 mm NA = 0.22 (has to be filled for full specification) mounted in SMA-coupling
    		 Diameter: 0.4 mm NA = 0.22 (has to be filled for full specification) mounted in SMA-coupling
    Output linear 70 µm x 2,500 µm (optical entrance)
    		 70 µm x 2,500 µm (optical entrance)
    		 70 µm x 1,250 µm (optical entrance)
    Grating Flat-field, 366 l/mm (center)
    		 Flat-field, 366 l/mm (center), blazed for approx. 220 nm
    		 Flat-field, 1084 l/mm (center), blazed for approx. 220 nm
    Diode array Hamamatsu S3904-256Q in a special housing (S5713) (S8381-256Q for MMS 1 NIR enh.), 256 pixels
    		 Hamamatsu S3904-256Q in a special housing (S5713), 256 pixels
    		 Hamamatsu S3904-256N in a special housing (S5713), 256 pixels
    Spectral range 310-1,100 nm
    specifications for the range
    360-900 nm (UV-VIS enhanced)
    400-1,000 nm (NIR enhanced)
    		 190-720 nm
    specifications for the range 220-720 nm
    250-780 nm
    specifications for the range 250-780 nm
    		 195-390 nm
    specifications for the range
    220-390 nm
    Wavelength accuracy 0.3 nm 0.5 nm 0.2 nm
    Temperature - induced drift < 0.01 nm/K < 0.006 nm/K < 0.005 nm/K
    Mean spectral pixel pitch Δ λ pixel ≈ 3.3 nm Δ λ pixel ≈ 2.2 nm Δ λ pixel ≈ 0.8 nm
    Resolution Δ λ FWHM ≈ 10 nm Δ λ FWHM ≈ 7 nm Δ λ FWHM ≈ 3 nm
    Sensitivity ≈ 103 Vs / J ≈ 103 Vs / J ≈ 103 Vs / J
    Straylight ≤ 0.8 % with Halogen lamp for UV-VIS enhanced as transmission at 450 nm with filter GG 495
    ≤ 0.2 % with Halogen lamp for NIR enhanced as transmission at 650 nm with filter RG 695
    		 ≤ 0.3 % with Deuterium lamp as transmission at 310 nm with NaNO2-solution (50 g/l)
    		 ≤ 0.3 % Deuterium lamp as transmission at 240 nm with NaJ-solution (10 g/l)
    Dimensions 70 x 50 x 40 mm3 67 x 60 x 40 mm3 70 x 60 x 40 mm3

    Cross section converter

    Minimal bending radius

    240 mm standard, up to 1 m available

     

    40 mm

    240 mm standard, up to 1 m available

     

    40 mm

    240 mm standard, up to 1 m available

     

    40 mm
  • Downloads

    Product Information (0.2 MB)

    Dimensions and drawings MMS (0.6 MB)