Work

Electron Beam Aberration Correction Using Optical Near Fields

Year: 2020

Type: article

Abstract: The interaction between free electrons and optical near fields is attracting increasing attention as a way to manipulate the electron wave function in space, time, and energy. Relying on currently attainable experimental capabilities, we design optical near-field plates to imprint a lateral phase on the electron wave function that can largely correct spherical aberration without the involvement of electric or magnetic lenses in the electron optics, and further generate on-demand lateral focal spot profiles. Our work introduces a disruptive and powerful approach toward aberration correction based on light-electron interactions that could lead to compact and versatile time-resolved free-electron microscopy and spectroscopy.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.125.030801

Authors: Andrea Konečná, F. Javier García de Abajo

Institutions: Institute of Photonic Sciences, Barcelona Institute of Science and Technology, Institució Catalana de Recerca i Estudis Avançats

Language: English

Topic: Advanced Electron Microscopy Techniques and Applications

Subfield: Structural Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

Funders: Fundación Cellex, Ministerio de Economía y Competitividad, H2020 European Research Council

Awards: G2010047927, G5264174264, G745058283