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arXiv · 2308.10870

Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography

Shengbo You·Peng-Han Lu·András Kovács·Thomas Schachinger·Frederick Allars·Rafal E. Dunin-Borkowski·Andrew M. Maiden
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Abstract

Over the past few years, the combination of diffuser and near-field electron ptychography has drawn more attention by its ability to recover large field of view with few diffraction patterns. In this paper, we purpose a novel design and implementation of amplitude diffuser. The amplitude diffuser introduces structures to the illumination while reducing the inelastic scattering. And the amplitude diffuser is implemented at the condenser lens aperture, allowing us to vary the illumination size under the same microscope setup. We demonstrate the reconstruction results under both conventional Transmission Electron Microscopy (TEM) mode as well as Lorentz mode.

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Shengbo You, Peng-Han Lu, András Kovács, Thomas Schachinger, Frederick Allars, Rafal E. Dunin-Borkowski, Andrew M. Maiden. 2023-07-26. Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography. https://arxiv.org/abs/2308.10870

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