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  Attosecond electron pulse trains and quantum state reconstruction in ultrafast transmission electron microscopy

Priebe, K., Rathje, C., Yalunin, S., Hohage, T., Feist, A., Schäfer, S., et al. (2017). Attosecond electron pulse trains and quantum state reconstruction in ultrafast transmission electron microscopy. Nature Photonics, 11(12), 793-797. doi:10.1038/s41566-017-0045-8.

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Priebe, K.E., Author
Rathje, C., Author
Yalunin, S.V., Author
Hohage, T., Author
Feist, A., Author
Schäfer, S., Author
Ropers, Claus1, Author                 
Affiliations:
1Department of Ultrafast Dynamics, MPI for Biophysical Chemistry, Max Planck Society, Göttingen, DE, ou_3371855              

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 Abstract: Ultrafast electron and X-ray imaging and spectroscopy are the basis for an ongoing revolution in the understanding of dynamical atomic-scale processes in matter. The underlying technology relies heavily on laser science for the generation and characterization of ever shorter pulses. Recent findings suggest that ultrafast electron microscopy with attosecond-structured wavefunctions may be feasible. However, such future technologies call for means to both prepare and fully analyse the corresponding free-electron quantum states. Here, we introduce a framework for the preparation, coherent manipulation and characterization of free-electron quantum states, experimentally demonstrating attosecond electron pulse trains. Phase-locked optical fields coherently control the electron wavefunction along the beam direction. We establish a new variant of quantum state tomography—‘SQUIRRELS’—for free-electron ensembles. The ability to tailor and quantitatively map electron quantum states will promote the nanoscale study of electron–matter entanglement and new forms of ultrafast electron microscopy down to the attosecond regime.

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Language(s): eng - English
 Dates: 2017
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41566-017-0045-8
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Title: Nature Photonics
Source Genre: Journal
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Publ. Info: London [u.a.] : Nature Publ. Group
Pages: - Volume / Issue: 11 (12) Sequence Number: - Start / End Page: 793 - 797 Identifier: Other: 1749-4885
Other: 1749-4893
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000240270