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Enabling better global research outcomes in soil, plant & environmental monitoring.

Spectrometer SM 9000

The new Spectrometer SM 9000 was developed for high-resolution, fiber optic spectroscopy applications in the UV/VIS to NIR range. It can be used as a stand-alone instrument or as a substantial enhancement of other PSI instruments to analyze spectral composition of irradiance. Ultra-high sensitivity of the instrument allows measuring fluorescence emission spectra of individual cells when combined with µ-FluorCam. The spectra can be measured in the range from UV (200 nm) to NIR (980 nm) with FWHM bandwidth of 3.5 nm. Fast recording can capture as many as 100 spectra per second with data resolution of 16 bits.

  • Ultra-high sensitivity.
  • Suitable for microspectrophotometry.
  • FWHM bandwidth of 3.5 nm.
  • Small-footprint, modular, robust, and thermally stable.
  • Very low heat generation.
  • 10 µs – 10 ms duration of flashes.
  • Variable exposure time, from 1 millisecond to minutes.
  • Kinetic spectra (max. 100 per second).
Optical Entrance Diameter
0.5 NA = 0.22 mounted in SMA-coupling, dismountable
Entrance slit 70 µm x 1400 µm (optical entrance)
Grating Flat-field correction
Spectral range 200 nm – 980 nm
Wavelength accuracy absolute < 0.5 nm
Reproducibility < 0.1 nm
Temperature – induced drift <0.01 nm/K
Spectral distance of pixel Δλ pixel ~ 0.8 nm
(FWHM: Full width half maximum) Δλ < 3 …4 nm (UV-NIR Version)
Straylight 0.1 % measured at 340 nm with deuterium lamp (transmission of NaNO2 solution, 50 g/l, 1 cm)
CCD Array Thermoelectrically cooled Hamamatsu S 7031
Number of pixels 1044 x 64
Dimensions of pixels 24 x 24 mm2
System data 16 Bit AD conversion
Noise 2…4 count standard deviation
  • Kotabova E. et al. (2014): BBA 1837: 734-743.
  • Kana R. et al. (2012): BBA 1817: 1170-1178.
  • Kana R. et al. (2009): BBA 1787: 1237-1247.