Quantitative measurement of orbital angular momentum in electron microscopy
arXiv:1403.4398 · doi:10.1103/PhysRevA.89.053818
Abstract
Electron vortex beams have been predicted to enable atomic scale magnetic information measurement, via transfer of orbital angular momentum. Research so far has focussed on developing production techniques and applications of these beams. However, methods to measure the outgoing orbital angular momentum distribution are also a crucial requirement towards this goal. Here, we use a method to obtain the orbital angular momentum decomposition of an electron beam, using a multi-pinhole interferometer. We demonstrate both its ability to accurately measure orbital angular momentum distribution, and its experimental limitations when used in a transmission electron microscope.
arXiv comment6 pages, 5 figures
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Cited by in corpus (13)
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- Experimental demonstration of an electrostatic orbital angular momentum sorter for electrons
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- Peculiar Rotation of Electron Vortex Beams
- EMCD with an electron vortex filter: Limitations and possibilities
- Extension of Friedel's law to Vortex Beam Diffraction
- A Stern-Gerlach-like approach to electron orbital angular momentum measurement
- Experimental Realisation of a π/2 Vortex Mode Converter for Electrons Using a Spherical Aberration Corrector
- Symmetry-constrained electron vortex propagation
- Automatic alignment of an orbital angular momentum sorter in a transmission electron microscope using a convolution neural network
- A quantum logic gate for free electrons
- Demonstration of a 2x2 programmable phase plate for electrons
- Quantum Hall-like effect for neutral particles with magnetic dipole moments in a quantum dot