Observation of Magnetic Helicoidal Dichroism with Extreme Ultraviolet Light Vortices

We report on the experimental evidence of magnetic helicoidal dichroism, observed in the interaction of an extreme ultraviolet vortex beam carrying orbital angular momentum with a magnetic vortex. Numerical simulations based on classical electromagnetic theory show that this dichroism is based on th...

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Bibliographic Details
Published in:Physical review letters 2022-02, Vol.128 (7), p.077401-077401, Article 077401
Main Authors: Fanciulli, Mauro, Pancaldi, Matteo, Pedersoli, Emanuele, Vimal, Mekha, Bresteau, David, Luttmann, Martin, De Angelis, Dario, Ribič, Primož Rebernik, Rösner, Benedikt, David, Christian, Spezzani, Carlo, Manfredda, Michele, Sousa, Ricardo, Prejbeanu, Ioan-Lucian, Vila, Laurent, Dieny, Bernard, De Ninno, Giovanni, Capotondi, Flavio, Sacchi, Maurizio, Ruchon, Thierry
Format: Article
Language:English
Subjects:
Chemical Physics
Chemical Sciences
Mechanics
Mechanics of materials
or physical chemistry
Physics
Theoretical and
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Summary:We report on the experimental evidence of magnetic helicoidal dichroism, observed in the interaction of an extreme ultraviolet vortex beam carrying orbital angular momentum with a magnetic vortex. Numerical simulations based on classical electromagnetic theory show that this dichroism is based on the interference of light modes with different orbital angular momenta, which are populated after the interaction between light and the magnetic topology. This observation gives insight into the interplay between orbital angular momentum and magnetism and sets the framework for the development of new analytical tools to investigate ultrafast magnetization dynamics.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.128.077401