title: Efficiency and polarization performance of a multilayer-coated laminar grating in the 6.5-6.9-nm wavelength region.
abstract: We applied a Mo/B4C multilayer coating to a laminar holographic grating with 2400 grooves/mm and a 1-m radius of curvature. By use of synchrotron soft x rays the multilayer-coated grating was evaluated to have diffraction efficiencies of 3.1% and 0.017% for s- and p-polarized radiation, respectively, at a 6.7-nm wavelength at a 45.35 degrees grazing angle of incidence in the +1 (inside) grating order. Thus the polarizance was estimated to be 98.9% at least. The zero-order peak was suppressed by the destructive interference caused by the groove profile.
authors: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan.
authors: Sadayuki
authors: S
authors: Ishikawa
authors: Takashi
authors: T
authors: Imazono
authors: Tadashi
authors: T
authors: Hatano
authors: Mihiro
authors: M
authors: Yanagihara
authors: Makoto
authors: M
authors: Watanabe