title: Thin film optical coatings. 6: Design method for two given wavelength antireflection coatings.
abstract: This paper considers the relations between thin film indices for making an antireflection coating when all optical thicknesses are equal. In this way, it is possible to determine antireflection coatings for two given wavelengths. Various cases are studied according to the two wavelengths and the index of the substrate.
authors.forename: J
authors.initials: J
authors.lastname: Mouchart