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Domain Imaging in Periodic Submicron Wide Nanostructures by Digital Drift Correction in Kerr Microscopy
Abstract
Magneto-optical Kerr microscopy is a powerful method for imaging magnetic domains. Even though domain imaging below the diffractive resolution limit is possible, such investigations are getting increasingly complex with decreasing structure size due to the decreasing Kerr contrast. As magnetic domain images free of topographical artifacts are obtained by subtracting a reference image from the actual image, the corresponding challenges are additionally increased by unavoidable sample motion in the time interval between acquiring the two images. Software-based drift corrections typically rely on a unique structure in the image’s region of interest (ROI), recognized automatically or selected manually by the user. By digital image shifting, the ROI positions in the actual and reference images are aligned, and the sample motion is compensated. For magnetic domain imaging in periodically arranged micro- or nano-objects, unique topographical features are not given, making the drift correction by ROIs difficult, often even impossible. Herein, a novel software-based approach is presented for drift corrections to image domains with features close/below the optical resolution limit and for investigating periodically arranged micro- or nano-objects without utilizing ROIs. High-contrast images are obtained, enabling the characterization of periodically arranged 1D, 2D, and 3D magnetic objects with lateral dimensions below 100 nm.
Citation
In: Advanced Photonics Research Volume 4 / Issue 10 (2023-08-27) eissn:2699-9293Sponsorship
Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-202312159231,
author={Akhundzada, Sapida and Dingel, Kristina and Janzen, Christian and Sick, Bernhard and Ehresmann, Arno},
title={Domain Imaging in Periodic Submicron Wide Nanostructures by Digital Drift Correction in Kerr Microscopy},
journal={Advanced Photonics Research},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15302 3000 Akhundzada, Sapida 3010 Dingel, Kristina 3010 Janzen, Christian 3010 Sick, Bernhard 3010 Ehresmann, Arno 4000 Domain Imaging in Periodic Submicron Wide Nanostructures by Digital Drift Correction in Kerr Microscopy / Akhundzada, Sapida 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15302=x R 4204 \$dAufsatz 4170 5550 {{Magnetische Eigenschaft}} 5550 {{Mikroskopie}} 5550 {{Nanostruktur}} 5550 {{Drift}} 7136 ##0##http://hdl.handle.net/123456789/15302
2023-12-15T12:54:04Z 2023-12-15T12:54:04Z 2023-08-27 doi:10.17170/kobra-202312159231 http://hdl.handle.net/123456789/15302 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ drift correction image processing imaging methods Kerr microscopy magnetic domain imaging optical microscopy resolution limit 530 Domain Imaging in Periodic Submicron Wide Nanostructures by Digital Drift Correction in Kerr Microscopy Aufsatz Magneto-optical Kerr microscopy is a powerful method for imaging magnetic domains. Even though domain imaging below the diffractive resolution limit is possible, such investigations are getting increasingly complex with decreasing structure size due to the decreasing Kerr contrast. As magnetic domain images free of topographical artifacts are obtained by subtracting a reference image from the actual image, the corresponding challenges are additionally increased by unavoidable sample motion in the time interval between acquiring the two images. Software-based drift corrections typically rely on a unique structure in the image’s region of interest (ROI), recognized automatically or selected manually by the user. By digital image shifting, the ROI positions in the actual and reference images are aligned, and the sample motion is compensated. For magnetic domain imaging in periodically arranged micro- or nano-objects, unique topographical features are not given, making the drift correction by ROIs difficult, often even impossible. Herein, a novel software-based approach is presented for drift corrections to image domains with features close/below the optical resolution limit and for investigating periodically arranged micro- or nano-objects without utilizing ROIs. High-contrast images are obtained, enabling the characterization of periodically arranged 1D, 2D, and 3D magnetic objects with lateral dimensions below 100 nm. open access Akhundzada, Sapida Dingel, Kristina Janzen, Christian Sick, Bernhard Ehresmann, Arno doi:10.1002/adpr.202300170 Magnetische Eigenschaft Mikroskopie Nanostruktur Drift publishedVersion eissn:2699-9293 Issue 10 Advanced Photonics Research Volume 4 false 00170
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