The design and manufacture of a Ge/SiO multilayer edge filter matched to air by MgF2 are presented. The design is based on the equivalent layers theory and numerical optimization of the analytical structure. The filter has an average transmission of 96% in the 3.2–4.9-µm region, and its rejection zone covers the visible and uv regions.
© 1978 Optical Society of America
I. Lubezky and E. Ceren, "Multilayer edge filter for the 3.2–4.9-µm range," Appl. Opt. 17, 2648-2649 (1978)