The Astronomy Instrumentation Group (AIG) develops optical components such as filters, dichroics, polarisers and waveplates for far infrared and submillimetre instruments, and supplies them to many of the leading ground-based and space observatories worldwide.

This is a long-standing and highly successful activity within the group. Our innovative developments include the very large area components needed by today’s mm-wave large detector focal planes, filtering for FIR instruments (up to 20 THz), and novel flat lenses using metamaterials.