Single-electron pulses for ultrafast diffraction

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AIDELSBURGER, Monika, Friedrich O. KIRCHNER, Ferenc KRAUSZ, Peter BAUM, 2010. Single-electron pulses for ultrafast diffraction. In: Proceedings of the National Academy of Sciences of the United States of America. 107(46), pp. 19714-19719. ISSN 0027-8424. eISSN 1091-6490. Available under: doi: 10.1073/pnas.1010165107

@article{Aidelsburger2010-11-16Singl-43292, title={Single-electron pulses for ultrafast diffraction}, year={2010}, doi={10.1073/pnas.1010165107}, number={46}, volume={107}, issn={0027-8424}, journal={Proceedings of the National Academy of Sciences of the United States of America}, pages={19714--19719}, author={Aidelsburger, Monika and Kirchner, Friedrich O. and Krausz, Ferenc and Baum, Peter} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:title>Single-electron pulses for ultrafast diffraction</dcterms:title> <dcterms:available rdf:datatype="">2018-09-18T09:28:53Z</dcterms:available> <dcterms:abstract xml:lang="eng">Visualization of atomic-scale structural motion by ultrafast electron diffraction and microscopy requires electron packets of shortest duration and highest coherence. We report on the generation and application of single-electron pulses for this purpose. Photoelectric emission from metal surfaces is studied with tunable ultraviolet pulses in the femtosecond regime. The bandwidth, efficiency, coherence, and electron pulse duration are investigated in dependence on excitation wavelength, intensity, and laser bandwidth. At photon energies close to the cathode's work function, the electron pulse duration shortens significantly and approaches a threshold that is determined by interplay of the optical pulse width and the acceleration field. An optimized choice of laser wavelength and bandwidth results in sub-100-fs electron pulses. We demonstrate single-electron diffraction from polycrystalline diamond films and reveal the favorable influences of matched photon energies on the coherence volume of single-electron wave packets. We discuss the consequences of our findings for the physics of the photoelectric effect and for applications of single-electron pulses in ultrafast 4D imaging of structural dynamics.</dcterms:abstract> <dc:date rdf:datatype="">2018-09-18T09:28:53Z</dc:date> <dc:contributor>Aidelsburger, Monika</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Kirchner, Friedrich O.</dc:creator> <dc:contributor>Baum, Peter</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:issued>2010-11-16</dcterms:issued> <dc:creator>Krausz, Ferenc</dc:creator> <bibo:uri rdf:resource=""/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:isPartOf rdf:resource=""/> <dc:contributor>Krausz, Ferenc</dc:contributor> <dc:creator>Baum, Peter</dc:creator> <dc:creator>Aidelsburger, Monika</dc:creator> <dc:contributor>Kirchner, Friedrich O.</dc:contributor> </rdf:Description> </rdf:RDF>

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