Lensless x-ray imaging in reflection geometry

ORAL

Abstract

We report on the development of a technique for lensless x-ray imaging in reflection geometry. In an approach similar to Fourier transform holography, we use a set of apertures to define object and reference waves from light which has already scattered from the sample. Back propagation from the apertures gives the image at the sample plane. This technique can be used with extended objects without additional masking, and can be used in reflection and transmission geometries. The extension of lensless x-ray imaging into reflection geometry opens the possibility of imaging surfaces in thin films, buried interfaces in multilayers, or Bragg planes in single crystals.

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Authors

  • Daniel Parks

    University of Oregon

  • Sujoy Roy

    Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley National Laboratory, USA

  • Keoki Seu

    University of Oregon, Lawrence Berkeley National Laboratory

  • Run Su

    University of Oregon, Physics Department, University of Oregon

  • Joshua Turner

    SLAC, SLAC National Accelerator Laboratory, Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, SLAC/ RSXS collaboration, Linac Coherent Light Source

  • Weilun Chao

    Center for X-ray Optics Lawrence Berkeley National Laboratory

  • Erik Anderson

    Center for X-ray Optics Lawrence Berkeley National Laboratory

  • Stefano Cabrini

    Molecular Foundry Lawrence Berkeley National Laboratory, Molecular Foundry, LBNL

  • Stephen Kevan

    University of Oregon