GEMINI-2D Interferometer

The GEMINI-2D is an advanced version of the GEMINI interferometer, specifically designed to

  • keep the dispersion constant during the scan of the relative delay between the two generated light replicas.
  • to keep the absolute arrival time of one of the two replicas (with attosecond stability).
  • With the ability to generate two collinear replicas of the light the GEMINI-2D is the ideal instrument for time-resolved measurements where maintaining the pulse duration and the synchronization with another light pulse is critical to ensure the time resolution.

    Two-Dimensional Electronic Spectroscopy (2DES)

    The GEMINI-2D was developed for two-dimensional experiments in electronic spectroscopy (2DES) to generate a pair of collinear phase-locked and ultrashort pump pulses.

    It simplifies the experimental setup for generating the required phase-locked pulse pair for sample excitation and guarantees the control of the relative delay between the pulse replicas with sub-attosecond precision and long-term reproducibility.

    The 2DES setup with GEMINI-2D is much more compact, easier to operate and more cost-effective than with diffractive optical beam splitters, pulse shapers or active path length stabilization.