MicroHR Series

Short Focal Length Imaging Spectrometers

Available as an imaging spectrograph or a scanning monochromator, HORIBA’s MicroHR spectrometer offers excellent flexibility and performance in a small and affordable package. These spectrometers benefit from the highest quality of gratings, also designed and manufactured by HORIBA. A rugged, high throughput optical system, the MicroHR is an ideal, affordable tool for a wide range of spectroscopic applications such as:

  • UV-NIR Absorption
  • Laser characterization
  • Fluorescence
  • Atmospheric studies
  • Source characterization
Segment: Scientific
Manufacturing Company: HORIBA Scientific

Key Benefits of the MicroHR Series Spectrometers:

  • 140 mm f/3.9 Czerny-Turner with imaging optics
  • Rugged solid milled construction
  • Interchangeable dual grating turrets
  • Configurable to your requirements
  • USB 2.0 interface on automated versions


There is a wide selection of gratings to choose from depending on optical requirements.  Gratings are 32 x 32 mm for the MicroHR. There are three different types of gratings available; classically ruled, holographic, and blazed holographic. There is also a flat mirror that may be ordered for the dual grating turret option. Please click on the link below to view all our grating options.

View Gratings

Computer Control

In addition to wavelength control the MicroHR has an optional automated turret control and automated control of the optional internal five position filter wheel. There are multiple software platforms to choose from for spectrometer control and acquisition. Please click on the link below to view all our software choices.

View Software

Optical Accessories

The MicroHR is compatible with many optical accessories to create your custom solution.  Please click on the link below to view some of our optical accessories.

View Accessories


 MicroHR (Manual)MicroHR (Auto)
Focal Length140 mm140 mm
Entrance Aperture Ratiof/3.88f/3.88
Grating MountInterchangeable single gratingInterchangeable dual grating turret
Grating Size32 mm x 32 mm32 mm x 32 mm
Scanning Range**0 – 1000 nm0 – 1500 nm
Multi-channel coverage**140 nm over 26.7 mm array140 nm over 26.7 mm array
Focal Plane27 mm wide x 10 mm high27 mm wide x 10 mm high
Image Magnification at Exit Slit1.11.1
Spectral Dispersion**5.25 nm/mm at 400 nm5.25 nm/mm
Spectral Resolution 0.3 nm (w/ 26 µm pixel array)0.25 nm (w/ exit slit & PMT)
Wavelength Accuracy**± 0.5 nm± 0.25 nm
Wavelength Repeatability**± 0.15 nm± 0.04 nm
SlitsFixed or micrometerFixed or micrometer
Computer Interface USB 2.0
Dimensions:Length7 in (178 mm)7 in (178 mm)
Width6 in (152 mm)Single Exit 8.1 in (206 mm), Dual Exit 10.5 in (267 mm)
Height5.5 in (140 mm)5.5 in (140 mm)**
Optical Axis Height3.5 in (89 mm)3.5 in (89 mm)
Weight8.8 lb (4.0 kg)Single Exit 10.0 lb (4.5 kg), Dual Exit 11.0 lb (5.0 kg)

All measurements taken at 633 nm
* Actual coverage on the array is 200 nm to 1400 nm however the detector is sensitive only to 1100 nm
** for 1200 g/mm grating at 400 nm


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