9150 Series High Resolution Monochromators

The 9150 series are Sciencetech's longest single path length monochromators with a 1.5m focal length. Under optimum conditions with a 2400l/mm grating it can achieve a resolution of 0.004nm in single pass mode.

This model of monochromator accomodates a grating on a removable kinematic mount, allowing the user to manually swap one grating for another without losing alignment.

Please note that this product includes one slit, but does not include any additional slits or gratings. These must be purchased separately. Please contact us for assistance in selecting the right components for your system.

The 9150X model is designed for diffraction limit operation, that provides a full spectrum coverage without gaps over a tunable 150nm range at a resolution of ~2pm in single pass mode. The spectrometer uses two gratings, two 1.5m f.l. parabolic reflectors and a corrector lens to produce a cross dispersed echellegram that is recorded on a 3kx3k cooled charge coupled device (CCD) camera with 12μ pixels, at a dispersion of 1pm/pixel. The long, thin echellegram is fit to the square CCD format using a 3 section image slicer, to maximise wavelength coverage and resolution.

Input optics include a micrometer adjustable rectangular input slit and a computer controlled source selector that can switch between four available input ports, useful in calibration.

Operational specifications are (for 31.5l/mm 150x50mm echelle, single pass)

  • Dispersion: 1pm/pixel; (diffraction limit = 1pm)
  • Wavelength coverage: 150nm band, position continuously selectable. No gap coverage up to 800nm. Camera coverage 300nm-900nm.
  • Aperture f/25.
  • Input slit: rectangular, continuously adjustable 0-500um.
  • Source selector to switch between four inputs.
  • Calibration facilities for wavelength and intensity.
  • Software to transfer raw images to permanent storage at the maximum possible rate, to transform and store as spectra corrected for wavelength and intensity.

Please note that for full frame digitization at 12 bits the transfer rate is 10 seconds per frame. Smaller frame sections can be transferred at correspondingly faster rates.

The 9040 series and 9490 series of high resolution monochromators are also available.


  • Highly customisable modular design
  • Two configurable input and output ports
  • Configurable turret and grating options
  • Universal serial ubs (USB) 2.0 communication
  • A full line of input and output accessories
  • Fully integrated software and development libraries available



This product could be used for the following applications:

  • Tunable monochromatic light source
  • Emission and source characterization
  • Absorbance, transmittance and reflectance measurement
  • High dispersion or high power density spectral illumination system
  • Electrochemical spectroscopy
  • Fluorescence spectroscopy
  • Scanning spectrophotometry
  • Raman spectroscopy


This product is manufactured by Sciencetech Inc.

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