title: Optical constants of float glass, nickel, and carbon from soft-x-ray reflectivity measurements.
abstract: Angular-dependent reflectivity was measured with a dynamic range of 5-6 orders of magnitude at ~20 different photon energies in the range from 40 to 800 eV with the HASYLAB reflectometer with synchrotron radiation. Several float-glass substrates and a number of sputtered Ni and C films were investigated to improve the accuracy. The optical constants were obtained from least-squares fits of theoretical reflectivity curves, taking into account the influence of film thicknesses and surface and interface roughnesses. All samples with Ni and C films were produced on float-glass substrates, with Ar as the sputter gas, in the low-pressure triode-assisted sputtering facility of the Sincrotrone Trieste.
authors.forename: I
authors.initials: I
authors.lastname: Diel
authors.forename: J
authors.initials: J
authors.lastname: Friedrich
authors.forename: C
authors.initials: C
authors.lastname: Kunz
authors.forename: S
authors.initials: S
authors.lastname: Di Fonzo
authors.forename: B R
authors.initials: BR
authors.lastname: Müller
authors.forename: W
authors.initials: W
authors.lastname: Jark