Reconstructing the Scattering Matrix from Scanning Electron Diffraction Measurements Alone [article]

Philipp M Pelz and Hamish G Brown and Jim Ciston and Scott D Findlay and Yaqian Zhang and Mary Scott and Colin Ophus
2020 arXiv   pre-print
Three-dimensional phase contrast imaging of multiply-scattering samples in X-ray and electron microscopy is extremely challenging, due to small numerical apertures, the unavailability of wavefront shaping optics, and the highly nonlinear inversion required from intensity-only measurements. In this work, we present a new algorithm using the scattering matrix formalism to solve the scattering from a non-crystalline medium from scanning diffraction measurements, and recover the illumination
more » ... ions. Our method will enable 3D imaging and materials characterization at high resolution for a wide range of materials.
arXiv:2008.12768v1 fatcat:llrkwaz2bvhrlchmh3hqrs34p4