GEMINI - ultra-stable interferometer


GEMINI is an ultra-stable, compact interferometer that has been designed to be added to your cutting-edge setup to extract the spectral content of any light source, coherent or not.

This novel interferometer guarantees very high robustness and stability between the two generated replicas of light. It overcomes the drawbacks of using monochromators, having:

  • High throughput, having no entrance slit (10mm clear aperture)
  • User adjustable spectral resolution without affecting throughput
  • An ultra-broadband spectral coverage (250nm to 3500nm)
  • Easy to align and plug&play
  • A compact footprint (176 x 44 x 54.5mm)

The exceptional performances of this device can be exploited in many different applications, such as time- and frequency-resolved fuorescence, coherent Raman, pump-probe, two-dimensional spectroscopy and studies on single molecules.

Download now the Pump Probe White Paper.


  •  High throughput that allows high sensitivities
  • ≈1 attosecond stability between the two replicas of light
  • Scan range selectable by the user
  • Compact and low-cost
  • Insensitive to vibrations



GEMINI Working Principle

GEMINI for Time Resolved Fluorescence Emission Spectra (TRES)

GEMINI for Excitation-Emission Maps (EEM)


This product could be used for the following applications:

  • Time- and Frequency-resolved Fluorescence
  • Coherent Raman Spectroscopy
  • Pump-probe Spectroscopy
  • Fluorescence Microscopy on Single Molecules


This product is manufactured by NIREOS.

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