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Electromagnetic lensing using the Aharonov-Bohm effect
- Source :
- New J. Phys. 26 043012 (2024)
- Publication Year :
- 2023
-
Abstract
- We demonstrate theoretically and experimentally a new electromagnetic lensing concept using the magnetic vector potential - in a region free of classical electromagnetic fields - via the Aharonov-Bohm effect. This toroid-shaped lens with poloidal current flow allows for electromagnetic lensing which can be tuned to be convex or concave with a spherical aberration coefficient of opposite polarity to its focal length. This new lens combines the advantages of traditional electromagnetic and electrostatic field-based lenses and opens up new possibilities for the optical design of charged-particle systems. More generally, these results demonstrate that the Aharonov-Bohm effect can shape charged particle wavefronts beyond simple step shifts if topologies beyond simple flux lines are considered and supports the physical significance of the magnetic vector potential.<br />Comment: 15 pages main text (3 figures) + 16 pages supplemental (5 figures). V2: Revised flow and clarity of text
- Subjects :
- Physics - Instrumentation and Detectors
Physics - Optics
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- New J. Phys. 26 043012 (2024)
- Publication Type :
- Report
- Accession number :
- edsarx.2301.09980
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1367-2630/ad3b31