<div class="csl-bib-body">
<div class="csl-entry">Chirita-Mihaila, M. C. (2023, January 10). <i>Electrons meet light</i> [Presentation]. Seminar aus Allgemeiner Physik, Wien, Austria.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/139831
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dc.description.abstract
The precise transverse control of electrons is at the heart of any high-resolution electron microscope where electron lenses and multipole aberration correctors have enabled sub-Angström spatial resolution.
This work describes a novel way of achieving transverse control over the electrons [1]. In the specimen chamber of a modified ultrafast scanning electron microscope, the electron pulse interacts in free space with a shaped counterpropagating laser pulse, inducing on-demand phase shifts to the electron wave. We demonstrate convex and concave light-based electron lensing, whereas concave lensing is impossible with traditional magnetostatic lenses. Furthermore, we show that we can create arbitrary electron intensity patterns. In contrast to other competing electron-shaping technologies, the light-based method is programmable and avoids losses, inelastic scattering, and instabilities due to the degradation of material diffraction elements. In the future, parts of the electron microscopes might be made of optical systems to improve the resolution and contrast of electron images.
en
dc.language.iso
en
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dc.subject
Electrons
en
dc.title
Electrons meet light
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Presentation
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tuw.researchTopic.id
M2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E134-03 - Forschungsbereich Atomic and Plasma Physics
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tuw.event.name
Seminar aus Allgemeiner Physik
de
tuw.event.startdate
10-01-2023
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tuw.event.enddate
10-01-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Wien
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tuw.event.country
AT
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tuw.event.institution
TU Wien, Institut für Angewandte Physik, E134
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tuw.event.presenter
Chirita-Mihaila, Marius Constantin
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
100
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item.openairetype
Presentation
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item.openairetype
Vortrag
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item.grantfulltext
none
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item.cerifentitytype
Publications
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.fulltext
no Fulltext
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crisitem.author.dept
E134-03 - Forschungsbereich Atomic and Plasma Physics