Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix

Pelz PM, Brown HG, Stonemeyer S, Findlay SD, Zettl A, Ercius P, Zhang Y, Ciston J, Scott MC, Ophus C (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Physical Review Research American Physical Society

Book Volume: 3

Article Number: 023159

Journal Issue: 2

DOI: 10.1103/PhysRevResearch.3.023159

Abstract

Three-dimensional phase-contrast imaging of multiply-scattering samples in x-ray and electron microscopy is challenging due to small numerical apertures, the unavailability of wave front shaping optics, and the highly nonlinear inversion required from intensity-only measurements. In this work, we present an algorithm using the scattering matrix formalism to solve the scattering from a noncrystalline medium from scanning diffraction measurements and simultaneously recover the illumination aberrations. We demonstrate our method experimentally in a scanning transmission electron microscope, recovering the scattering matrix of a heterogeneous sample with two layers of multiwall carbon nanotubes filled with TaTe2 core-shell structures, spaced 10nm apart in the axial direction. Our work enables phase contrast imaging and materials characterization in multiply-scattering samples at high resolution for a wide range of materials.

Authors with CRIS profile

Philipp Pelz

Involved external institutions

University of California, Berkeley US United States (USA) (US) Lawrence Berkeley National Laboratory (LBNL) US United States (USA) (US) Monash University AU Australia (AU)

How to cite

APA:

Pelz, P.M., Brown, H.G., Stonemeyer, S., Findlay, S.D., Zettl, A., Ercius, P.,... Ophus, C. (2021). Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix. Physical Review Research, 3(2). https://doi.org/10.1103/PhysRevResearch.3.023159

MLA:

Pelz, Philipp M., et al. "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix." Physical Review Research 3.2 (2021).

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