Silicon Carbide Mirror
Silicon carbide (SiC) is an ideal material for larger telescopes and high-speed scanning systems due to its non-toxicity, exceptional thermomechanical stability and resistance against oxidation and chemical degradation. This paper presents a deterministically manufactured 4.03 m SiC aspheric mirror with low-temperature PVD cladding. It illustrates how quantitative test data from generation (mm precision) to polishing …