title: Antireflection coatings effective at two wavelengths simultaneously in the visible region using homogeneously mixed dielectrics.
abstract: Double-layer quarter-half AR coatings effective at two wavelengths simultaneously in the visible region have been fabricated by depositing a homogeneous ZnS-MgF(2) mixture as the inner layer and MgF(2) as the outer layer. The results obtained agree well with those predicted theoretically.
authors.forename: K N
authors.initials: KN
authors.lastname: Chopra
authors.forename: O P
authors.initials: OP
authors.lastname: Grover
authors.forename: R
authors.initials: R
authors.lastname: Hradaynath