Refractive hard x-ray vortex phase plates
Seiboth F, Kahnt M, Lyubomirskiy M, Seyrich M, Wittwer F, Ullsperger T, Nolte S, Batey D, Rau C, Schroer CG (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 44
Pages Range: 4622-4625
Journal Issue: 18
DOI: 10.1364/OL.44.004622
Abstract
In this Letter, we report on the creation of hard x-ray beams carrying orbital angular momentum of topological charge −ℏ and −3ℏ at a photon energy of 8.2 keV via spiral phase plates made out of fused silica by ultrashort-pulsed laser ablation. The phase plates feature a smooth phase ramp with a 0.5 μm nominal step height and a surface roughness of 0.5 μm. The measured vortex beams show submicrometer-sized donut rings and agree well with numerical modeling. Fused silica phase plates are potentially suited to manipulate the electromagnetic field in highly intense x-ray beams at x-ray free-electron laser sources.
Involved external institutions
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
Friedrich-Schiller-Universität Jena
Germany (DE)
Diamond Light Source
United Kingdom (GB)
Germany (DE)
Friedrich-Schiller-Universität Jena
Germany (DE)
Diamond Light Source
United Kingdom (GB)
How to cite
APA:
Seiboth, F., Kahnt, M., Lyubomirskiy, M., Seyrich, M., Wittwer, F., Ullsperger, T.,... Schroer, C.G. (2019). Refractive hard x-ray vortex phase plates. Optics Letters, 44(18), 4622-4625. https://doi.org/10.1364/OL.44.004622
MLA:
Seiboth, Frank, et al. "Refractive hard x-ray vortex phase plates." Optics Letters 44.18 (2019): 4622-4625.
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