Product Notes & Downloads


Laser-based IR chemical imaging microscope

Product Code Description Lead Time Price Quantity Buy / Get Quote
Spero-LT Laser-based IR chemical imaging microscope On Request On Request

Wide-field IR (0.3 NA)

Camera Array Size:

480 x 480 [1]

Diffraction-Limited Spatial Resolution:

< 12 μm @ λ = 5.5 μm [1]

Field of view:

2 mm x 2 mm (0.3 NA) [1]

Image Cube Acquisition Time:

< 40 s (450 absorbance images collected at 2 cm-1 spacing) [1]

Image Pixel Size:

4.3 μm (0.3 NA) [1]

Minimum Detectable Signal:

< 3 mAU per scan [1]

Numerical aperture (NA):

0.3 [1]

Spectral Resolution:

Variable, down to 2 cm-1 [1]

Wavelength Range:

Standard configuration: 1750 cm-1 to 1000 cm-1; customisable between 2300 cm-1 and 800 cm-1 [1]

Working distance (WD):

>25mm [1]

[1] IR imaging mode


Feature Spero-LT Spero-QT
Transmission mode imaging YES YES
Reflection mode imaging   YES
Visible light imaging channel   YES
Lo-mag IR Objective (0.3 NA) YES YES
Hi-mag IR Objective (0.7 NA)   YES
Wavelength coverage 1000-1750 cm-1
(5.7 to 10.0 µm)
950 to 1800 cm-1
(5.6 to 10.5 µm)
Warranty 1 year or 2000 laser-active hours (whichever arrives first) 2 years or 4000 laser-active hours (whichever arrives first)

In a class of their own, the Spero® microscopes are the world’s first and only fully integrated, wide-field spectroscopic microscopy and imaging platforms based on our broadly tunable mid-infrared quantum cascade laser technology.

The Spero-LT is the latest model in the Spero product family. The LT offers the same high-performance speed and resolution specifications as the Spero-QT flagship model but is economically configured to address a wide range of materials and life sciences research applications while fitting within tight budget constraints. Contact us to learn what configuration options are available.

Features & Benefits

  • Real-time, high-throughput spectral imaging enabled by ultra-high brightness QCL technology
  • No stains or molecular tags required
  • Label-free IR spectroscopy displays pure chemistry of sample
  • No cryogenic cooling needed
  • Quick setup means more time for analysis


  • Biomedical imaging of tissues, cells, and fluids
  • Cancer research
  • Pharmaceutical testing of tablets, powders, and liquids
  • Drug discovery: API and excipient optimization and down-selection
  • Protein secondary structure and aggregation testing
  • Real-time reaction monitoring
  • Materials testing and analysis
  • Forensics
  • Chemical detection and identification