Article ; Online: A Gold Needle Tip Array Ultrafast Electron Source with High Beam Quality.
Nano letters
2024
Abstract: Electron sources are crucial elements in diverse applications such as electron microscopes, synchrotrons, and free-electron lasers. Nanometer-sharp needle tips are electron emitters with the highest beam quality, yet for a single needle the current is ... ...
Abstract | Electron sources are crucial elements in diverse applications such as electron microscopes, synchrotrons, and free-electron lasers. Nanometer-sharp needle tips are electron emitters with the highest beam quality, yet for a single needle the current is limited. Combining the emission of multiple needles promises large current yields while preserving the individual emitters' favorable properties. We present an ultrafast electron source consisting of a lithographically fabricated array of sharp gold tips illuminated with 25 fs laser pulses. The source provides up to 2000 electrons per pulse for moderate laser peak intensities of 10 |
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Language | English |
Publishing date | 2024-04-15 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1530-6992 |
ISSN (online) | 1530-6992 |
DOI | 10.1021/acs.nanolett.4c00870 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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