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Plasmonic nanoantenna for energy-efficient All-Optical Switching

Maxime Vergès¹, Julius Hohlfeld¹, Michel Hehn¹, Stéphane Mangin¹, Artëm Larin², Roman Savelev², Dmitry Zuev², Colas Joannin³
¹Université de Lorraine, Institut Jean Lamour, Nancy, France
²ITMO University, St. Petersburg 197101, Russia
³COMSOL France SAS, Grenoble, France

Published in 2020

Our goal is to create plasmons to enhance All Optical Switching (AOS) of the magnetization. We used a finite-element model in order to understand the impact of plasmonic disk-shaped nanoantennas on magneto-optical effects. We first tested our model without an antenna and compare it with analytical solutions .The plasmonic nanoantenna tends to enhance the energy absorption in the layers, especially the magnetic layer, but also induces a field confinement around the antenna. These results sound promising for developing energy-efficient plasmonic magneto-optical devices.

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Vergès_Maxime_Poster.pptx - 1.19MB
Conférence_COMSOL.pptx - 9.54MB