title: Diffraction grating transmission efficiencies for XUV and soft x rays.
abstract: Efficiencies for diffraction of 45-275-eV x rays into orders by interferometrically formed, electrodeposited, gold transmission gratings have been measured on the 4 degrees beam line at the Stanford Synchrotron Radiation Project (SSRP). Anomalous dispersion affects the observed efficiency since the gold is partially transmitting to x rays. Model calculations which include anomalous dispersion are in good agreement with observations. With a suitable choice of material and thickness, a grating can be optimized for a given wavelength range by reducing the zero order transmission and enhancing the higher orders. Even orders are suppressed for a grating with equal slit and wire sizes.
authors.forename: H W
authors.initials: HW
authors.lastname: Schnopper
authors.forename: L P
authors.initials: LP
authors.lastname: Van Speybroeck
authors.forename: J P
authors.initials: JP
authors.lastname: Delvaille
authors.forename: A
authors.initials: A
authors.lastname: Epstein
authors.forename: E
authors.initials: E
authors.lastname: Källne
authors.forename: R Z
authors.initials: RZ
authors.lastname: Bachrach
authors.forename: J
authors.initials: J
authors.lastname: Dijkstra
authors.forename: L
authors.initials: L
authors.lastname: Lantward