VLTI Instrumentation

Future instruments:

  • MATISSE: 4-way beam combiner from L, M and N infrared bands
  • GRAVITY: 4-way beam combiner in K band, with spectroscpic, frine tracking and astrometric capabilities.

Operational Instruments:

  • MIDI: The Mid-Infrared (8-13 mm) 2-way beam combiner
    Spectral resolution R=30 (prism), R=230 (grism).
  • AMBER: The Near-Infrared (J, H, K; 1-2.5 mm) 3-way beam combiner
    Spectal resolution R=30 (low resolution), 1500 (medium r.), 12000 (high r.).
  • PIONIER: The 4-way beam combiner in H band using the visitor focus of VLTI

Decommissioned Instruments

  • PRIMA: The Instrument for Phase-Referenced Imaging and Microarcsecond Astrometry
  • VINCI: The VLT Interferometer Commissioning Instrument.K-band