Antireflection coatings on germanium and silicon substrates in the 3-5-_m and 8-12-_m windows of IR transparency

摘要

This paper presents designs for antireflection coatings on germanium and silicon substrates, using the film-forming materials ZnS, Ge, YF_3, and MgF_2. The spectral characteristics of the residual reflection and transmission of the coatings are presented in the 3-5-μm and 8-12-μm spectral regions.