title: Revêtements optiques à structure périodique. I: Fonctions caractéristiques.
abstract: With the introduction of characteristic functions connected with optical thin films, we can examine the main properties of a multilayer coating with periodic structure. They both depend on the mathematical properties of the Tchebycheff polynomials and on the characteristics of the chosen base shape.
authors.forename: J
authors.initials: J
authors.lastname: Mouchart