Advances in beryllium and AlBeMet optical materials

The paper will focus on three main areas; thermal and physical characterization of the new O-30 optical grade of beryllium at cryogenic temperatures; the development of a leachable mandrel technology for near net shaped (NNS) parts in beryllium and AlBeMet®; finally the paper will report on the optical characterization of AlbeMet® as an optical substrate material.