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Observation of Magnetic Helicoidal Dichroism with Extreme Ultraviolet Light Vortices

Mauro Fanciulli 1, 2 Matteo Pancaldi 3 Emanuele Pedersoli 4 Mekha Vimal 1 David Bresteau 1 Martin Luttmann 1 Dario de Angelis 4 Primož Rebernik Ribič 4 Benedikt Rösner 5 Christian David 5 Carlo Spezzani 4 Michele Manfredda 4 Ricardo Sousa 6 Ioan-Lucian Prejbeanu 6 Laurent Vila 6 Bernard Diény 4 Giovanni de Ninno 4, 7 Flavio Capotondi 4 Maurizio Sacchi 8, 9 Thierry Ruchon 1 
1 ATTO - Attophysique
IRAMIS - Institut Rayonnement Matière de Saclay, LIDyl - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
2 LPMS - Laboratoire de Physique des Matériaux et des Surfaces
3 Elettra Sincrotrone Trieste
4 Elettra Sincrotrone Trieste
5 PSI - Paul Scherrer Institute
6 SPINTEC - SPINtronique et TEchnologie des Composants
7 State Key Laboratory of Quantum Optics and Quantum Optics devices
8 SSOLEIL - Synchrotron SOLEIL
9 INSP-E8 - Croissance et propriétés de systèmes hybrides en couches minces
INSP - Institut des Nanosciences de Paris
Abstract : 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
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https://hal-cea.archives-ouvertes.fr/cea-03599713
Contributor : Caroline Lebe Connect in order to contact the contributor
Submitted on : Monday, March 7, 2022 - 1:27:51 PM
Last modification on : Wednesday, August 24, 2022 - 3:31:29 AM

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CEA | UGA | CNRS | UNIV-CERGY | INSP | ALLINSP | INSP-E8 | IRAMIS-LIDYL | CEA-UPSAY | UNIV-PARIS-SACLAY | SYNCHROTRON-SOLEIL | SORBONNE-UNIVERSITE | IRIG | CEA-GRE | SU-SCIENCES | LPMS | CY-TECH-SE | SU-TI | GS-ENGINEERING | IRAMIS | GS-CHIMIE | INSTITUT-SCIENCES-LUMIERE

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Mauro Fanciulli, Matteo Pancaldi, Emanuele Pedersoli, Mekha Vimal, David Bresteau, et al.. Observation of Magnetic Helicoidal Dichroism with Extreme Ultraviolet Light Vortices. Physical Review Letters, American Physical Society, 2022, 128 (7), pp.077401. ⟨10.1103/PhysRevLett.128.077401⟩. ⟨cea-03599713⟩

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