The Mid-Infrared ELT Imager and Spectrograph (METIS) will be one of only three 1st generation science instruments on the 39m Extremely Large Telescope (ELT). METIS will provide diffraction-limited imaging and medium resolution slit-spectroscopy from 3 – 13 microns (L, M, and N bands), as well as high resolution (R ~100,000) integral field spectroscopy from 2.9 – 5.3 microns. Both imaging and IFU spectroscopy can be combined with coronagraphic techniques.
After the final design reviews of the optics (2021) and the entire system (2022), the hardware procurements have started. In this paper we present the final design of METIS and provide an overview of the various ongoing activities. Many hardware components are already in hand, and the manufacturing is in full swing in order to start the assembly and testing of the subsystems in 2024. We also discuss the complex assembly and test phase of the system, for which a dedicated facility is currently being prepared. First light at the telescope is expected in 2028.
|