title: Focusing diffractive cylindrical mirrors: rigorous evaluation of various design methods.
abstract: The performance characteristics of focusing diffractive mirrors designed with various methods are evaluated by using the rigorous boundary element method. Quantitative results are presented for (1) conventional-zero-thickness mirror designs, (2) alternative-zero-thickness designs that incorporate an off-axis correction factor and (3) finite-thickness designs. For TM polarization, the mirrors designed by using the alternative-zero-thickness method perform considerably worse than those designed by using the conventional-zero-thickness method, which contradicts predictions made in an earlier paper.
authors.affiliation: School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta 30332, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Bendickson
authors.forename: E N
authors.initials: EN
authors.lastname: Glytsis
authors.forename: T K
authors.initials: TK
authors.lastname: Gaylord