| Title: | Photoelectric effect with a twist |
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| Authors: | ID De Ninno, Giovanni, University of Nova Gorica (Author)
ID Wätzel, Jonas, Institut für Physik, Martin-Luther Universität Halle-Wittenberg (Author)
ID Rebernik Ribič, Primož, Elettra-Sincrotrone Trieste SCpA (Author)
ID Allaria, Enrico, Elettra-Sincrotrone Trieste SCpA (Author)
ID Coreno, Marcello, ISM-CNR, Basovizza Area Science Park (Author)
ID Danailov, Miltcho B., Elettra-Sincrotrone Trieste SCpA (Author)
ID David, Christian, Paul Scherrer Institut, Villigen-PSI (Author)
ID Demidovich, Alexander, Elettra-Sincrotrone Trieste SCpA (Author)
ID Di Fraia, Michele, Elettra-Sincrotrone Trieste SCpA (Author)
ID Giannessi, Luca, Elettra-Sincrotrone Trieste SCpA (Author)
ID Hansen, Klaus, Center for Joint Quantum Studies and Department of Physics, Tianjin University (Author)
ID Krušič, Špela, J. Stefan Institute (Author)
ID Manfredda, Michele, Elettra-Sincrotrone Trieste SCpA (Author)
ID Meyer, Micheal, European XFEL (Author)
ID Mihelič, Andrej, J. Stefan Institute (Author)
ID Mirian, Najmeh, Elettra-Sincrotrone Trieste SCpA (Author)
ID Plekan, Oksana, Elettra-Sincrotrone Trieste SCpA (Author)
ID Ressel, Barbara, University of Nova Gorica (Author)
ID Rosner, Benedikt, Paul Scherrer Institut, Villigen-PSI (Author)
ID Simoncig, Alberto, Elettra-Sincrotrone Trieste SCpA (Author)
ID Spampinati, Simone, Elettra-Sincrotrone Trieste SCpA (Author)
ID Štupar, Janez, University of Nova Gorica (Author)
ID Žitnik, Matjaž, J. Stefan Institute (Author)
ID Zangrando, Marco, Istituto Officina dei Materiali, CNR (Author)
ID Callegari, Carlo, Elettra-Sincrotrone Trieste SCpA (Author)
ID Berakdar, Jamal, Institut für Physik, Martin-Luther Universität Halle-Wittenberg (Author) |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Photons have fixed spin and unbounded orbital angular momentum (OAM). While the former is manifested in the polarization of light, the latter corresponds to the spatial phase distribution of its wavefront1. The distinctive way in which the photon spin dictates the electron motion upon light– matter interaction is the basis for numerous well-established spectroscopies. By contrast, imprinting OAM on a mat- ter wave, specifically on a propagating electron, is gener- ally considered very challenging and the anticipated effect undetectable2. In refs. 3,4, the authors provided evidence of OAM-dependent absorption of light by a bound electron. Here, we seek to observe an OAM-dependent dichroic photo- electric effect, using a sample of He atoms. Surprisingly, we find that the OAM of an optical field can be imprinted coher- ently onto a propagating electron wave. Our results reveal new aspects of light–matter interaction and point to a new kind of single-photon electron spectroscopy. |
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| Keywords: | FEL, OAM, Photoelectric effect |
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| Publication version: | Version of Record |
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| Year of publishing: | 2020 |
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| Number of pages: | 554-558 |
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| Numbering: | vol 14 |
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| PID: | 20.500.12556/RUNG-5787 |
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| COBISS.SI-ID: | 27699459 |
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| DOI: | https://doi.org/10.1038/s41566-020-0669-y |
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| NUK URN: | URN:SI:UNG:REP:CDUPGIYX |
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| Publication date in RUNG: | 09.09.2020 |
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| Views: | 4356 |
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| Downloads: | 0 |
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