Schnopper H W, Van Speybroeck L P, Delvaille J P, Epstein A, Källne E, Bachrach R Z, Dijkstra J, Lantward L
Appl Opt. 1977 Apr 1;16(4):1088-91. doi: 10.1364/AO.16.001088.
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.
