High-resolution optical imaging of single magnetic flux quanta with a solid immersion lens - Laboratoire Ondes et Matière d'Aquitaine Accéder directement au contenu
Article Dans Une Revue Optics Express Année : 2023

High-resolution optical imaging of single magnetic flux quanta with a solid immersion lens

Résumé

Magneto-optical imaging of quantized magnetic flux tubes in superconductors-Abrikosov vortices-is based on Faraday rotation of light polarization within a magneto-optical indicator placed on top of the superconductor. Due to severe aberrations induced by the thick indicator substrate, the spatial resolution of vortices is usually well beyond the optical diffraction limit. Using a high refractive index solid immersion lens placed onto the indicator garnet substrate, we demonstrate wide field optical imaging of single flux quanta in a Niobium film with a resolution better than 600 nm and sub-second acquisition periods, paving the way to high-precision and fast vortex manipulation. Vectorial field simulations are also performed to reproduce and optimize the experimental features of vortex images.
Fichier principal
Vignette du fichier
Thakur et al Text & Figs.pdf (3.4 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04109450 , version 1 (30-05-2023)

Identifiants

Citer

Siddharatha Thakur, Philippe Tamarat, Antonine Rochet, Joschka Birk, Ivan S Veshchunov, et al.. High-resolution optical imaging of single magnetic flux quanta with a solid immersion lens. Optics Express, 2023, 31 (15), pp.24194-24202. ⟨10.1364/OE.494474⟩. ⟨hal-04109450⟩
93 Consultations
49 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More