# Towards a holographic approach to spherical aberration correction in scanning transmission electron microscopy

## TL;DR

This paper introduces a holographic method for correcting spherical aberration in scanning transmission electron microscopy, leveraging phase modulation with nanofabricated holograms to improve spatial resolution simply and cost-effectively.

## Contribution

It presents a novel holographic approach to spherical aberration correction in electron microscopy, demonstrating practical improvements in resolution.

## Key findings

- Enhanced spatial resolution in electron microscopy
- Holographic correction is simple and cost-effective
- Successful application of phase modulation with nanofabricated holograms

## Abstract

Recent progress in phase modulation using nanofabricated electron holograms has demonstrated how the phase of an electron beam can be controlled. In this paper, we apply this concept to the correction of spherical aberration in a scanning transmission electron microscope and demonstrate an improvement in spatial resolution. Such a holographic approach to spherical aberration correction is advantageous for its simplicity and cost-effectiveness.