Light-based Chromatic Aberration Correction of Ultrafast Electron Microscopes
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914342621937664 |
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| author | Mihaila, Marius Constantin Chirita Streshkova, Neli Laštovičková Kozák, Martin |
| author_facet | Mihaila, Marius Constantin Chirita Streshkova, Neli Laštovičková Kozák, Martin |
| contents | We propose and theoretically demonstrate a technique that allows one to compensate for chromatic aberrations of traditional electron lenses in ultrafast electron microscopes. The technique is based on space- and time-dependent phase modulation of a pulsed electron beam using interaction with a shaped pulsed ponderomotive lens. The energy-selective focal distance is reached by combining the electron temporal chirp with the time-dependent size of the effective potential, with which the electrons interact. As a result, chromatic aberration can be reduced by up to a factor of seven. This approach paves the way for advanced transverse and longitudinal wavefront shaping of electrons in free space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10210 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Light-based Chromatic Aberration Correction of Ultrafast Electron Microscopes Mihaila, Marius Constantin Chirita Streshkova, Neli Laštovičková Kozák, Martin Quantum Physics We propose and theoretically demonstrate a technique that allows one to compensate for chromatic aberrations of traditional electron lenses in ultrafast electron microscopes. The technique is based on space- and time-dependent phase modulation of a pulsed electron beam using interaction with a shaped pulsed ponderomotive lens. The energy-selective focal distance is reached by combining the electron temporal chirp with the time-dependent size of the effective potential, with which the electrons interact. As a result, chromatic aberration can be reduced by up to a factor of seven. This approach paves the way for advanced transverse and longitudinal wavefront shaping of electrons in free space. |
| title | Light-based Chromatic Aberration Correction of Ultrafast Electron Microscopes |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2501.10210 |