Before revision: Known optical materials include amorphous materials and crystalline materials: Glass Plastics Polycarbonate Poly(methyl methacrylate) Sodium chloride Strontium fluoride Synthetic diamond Zinc sulfide Optical materials useful with infrared light include: Silicon (1.2–7 µm) Zinc selenide Non-linear optical materials or nonlinear media transform light in various ways , in nonlinear optics.
After revision: Known optical materials include amorphous materials and crystalline materials: Glass Plastics Polycarbonate Poly(methyl methacrylate) Sodium chloride Strontium fluoride Synthetic diamond Zinc sulfide Optical materials useful with infrared light include: Silicon (1.2–7 µm) Zinc selenide Non-linear optical materials or nonlinear media transform light in various ways in nonlinear optics.