2009/10/28 by A. F. Isakovic, Isakovic, A. F., A. Stein +22
Physics and Astronomy · #Adaptive optics and wavefront sensing #Advanced X-ray Imaging Techniques #Digital Holography and Microscopy #cond-mat.mes-hall #cond-mat.mtrl-sci #physics.optics
paper · pdf · doi:10.48550/arxiv.0910.5524
15 pages, 4 figures, submitted for publication
arxiv created 2009/10/28 · arxiv updated 2009/12/01
We have implemented a virtual Young's double slit experiment for hard X-ray photons with micro-fabricated bi-prisms. We observe fringe patterns with a scintillator, and quantify interferograms by detecting X-ray fluorescence from a scanned 30nm Cr metal film. The observed intensities are best modeled with a near-field, Fresnel analysis. The maximum fringe number in the overlap region is proportional to the ratio of real to imaginary parts refractive index of the prism material. The horizontal and vertical transverse coherence lengths at beamline APS 8-ID are measured.