title: Analytic theory of soft x-ray diffraction by Lamellar Multilayer Gratings.
abstract: An analytic theory describing soft x-ray diffraction by Lamellar Multilayer Gratings (LMG) has been developed. The theory is derived from a coupled waves approach for LMGs operating in the single-order regime, where an incident plane wave can only excite a single diffraction order. The results from calculations based on these very simple analytic expressions are demonstrated to be in excellent agreement with those obtained using the rigorous coupled-waves approach. The conditions for maximum reflectivity and diffraction efficiency are deduced and discussed. A brief investigation into p-polarized radiation diffraction is also performed.
authors.affiliation: Institute of Crystallography, Russian Academy of Sciences, Moscow, Russia. ivk@crys.ras.ru
authors.forename: I V
authors.initials: IV
authors.lastname: Kozhevnikov
authors.forename: R
authors.initials: R
authors.lastname: van der Meer
authors.forename: H M J
authors.initials: HM
authors.lastname: Bastiaens
authors.forename: K-J
authors.initials: KJ
authors.lastname: Boller
authors.forename: F
authors.initials: F
authors.lastname: Bijkerk