Light-based electron aberration corrector

• URL: http://arxiv.org/abs/2504.18661v1
• Date: Fri, 25 Apr 2025 19:35:56 GMT
• Title: Light-based electron aberration corrector
• Authors: Marius Constantin Chirita Mihaila, Petr Koutenský, Kamila Moriová, Martin Kozák,
• Abstract summary: We show that spherical aberration in a cylindrically symmetric electron lens can be fully compensated via interaction with a shaped light field.<n>This approach introduces a new paradigm for optical control in electron beam shaping and opens a pathway towards compact and tunable light-based aberration correctors for high-resolution electron microscopy.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Achieving atomic resolution in electron microscopy has historically been hindered by spherical aberration, a fundamental limitation of conventional electron lenses. Its correction typically requires complex assemblies of electromagnetic multipoles. Here, we demonstrate that spherical aberration in a cylindrically symmetric electron lens can be fully compensated via interaction with a shaped light field. By analyzing distortions in high-magnification point-projection electron images of optical standing waves, we quantify the spherical aberration before and after light-induced correction. This approach introduces a new paradigm for optical control in electron beam shaping and opens a pathway towards compact and tunable light-based aberration correctors for high-resolution electron microscopy.

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