title: Diffraction grating eigenvector for translational and rotational motion.
abstract: Future energy scaling of high-energy chirped-pulse amplification systems will benefit from the capability to coherently tile diffraction gratings into larger apertures. Design and operation of a novel, accurate alignment diagnostic for coherently tiled diffraction gratings is required for successful implementation of this technique. An invariant diffraction direction and phase for special moves of a diffraction grating is discussed, allowing simplification in the design of the coherently tiled grating diagnostic. An analytical proof of the existence of a unique diffraction grating eigenvector for translational and rotational motion that conserves the diffraction direction and diffracted wave phase is presented.
authors.affiliation: Lawrence Livermore National Laboratory, California 94550, USA. rushford1@llnl.gov
authors.forename: Michael C
authors.initials: MC
authors.lastname: Rushford
authors.forename: William A
authors.initials: WA
authors.lastname: Molander
authors.forename: James D
authors.initials: JD
authors.lastname: Nissen
authors.forename: Igor
authors.initials: I
authors.lastname: Jovanovic
authors.forename: Jerald A
authors.initials: JA
authors.lastname: Britten
authors.forename: C P J
authors.initials: CP
authors.lastname: Barty