Measuring the orbital angular momentum spectrum of an electron beam

Measuring the orbital angular momentum spectrum of an electron beam

Existing methods of characterizing electron beams carrying orbital angular momentum are inefficient as they allow measuring one OAM state at a time. Here the authors demonstrate an OAM spectrometer capable of analysing multiple OAM states and a potential tool for probing magnetic materials.

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Bibliographic Details
Main Authors: Vincenzo Grillo, Amir H. Tavabi, Federico Venturi, Hugo Larocque, Roberto Balboni, Gian Carlo Gazzadi, Stefano Frabboni, Peng-Han Lu, Erfan Mafakheri, Frédéric Bouchard, Rafal E. Dunin-Borkowski, Robert W. Boyd, Martin P. J. Lavery, Miles J. Padgett, Ebrahim Karimi
Format: article
Language:EN
Published: Nature Portfolio 2017
Subjects:
Science
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Online Access:https://doaj.org/article/9931279062df4b67bbd3590c95f1d2a8
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Summary:Existing methods of characterizing electron beams carrying orbital angular momentum are inefficient as they allow measuring one OAM state at a time. Here the authors demonstrate an OAM spectrometer capable of analysing multiple OAM states and a potential tool for probing magnetic materials.

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