Substrate materials: Optical Glass (e.g., N-BK7, Fused Silica)
Substrate materials: Optical Glass (e.g. N-BK7, Fused Silica), Ge, ZnSe, Si···
Precision glass CNC or sometimes MRF polished
CNC and MRF polishing techniques
Substrate Materials: Custom Glass Materials
Large numerical apertures (NA 0.8), diffraction limited collimation
