title: Theory of optimal beam splitting by phase gratings. II. Square and hexagonal gratings.
abstract: We use the calculus of variations to give a general theory for finding optimal square and hexagonal phase gratings for doing beam splitting.
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. Iromero@sandia.gov
authors.forename: Louis A
authors.initials: LA
authors.lastname: Romero
authors.forename: Fred M
authors.initials: FM
authors.lastname: Dickey