Journal Article

PUBDB-2019-03302

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Refractive hard x-ray vortex phase plates

Seiboth, F. (Corresponding author) ; Kahnt, M.DESY* ; Lyubomirskiy, M.DESY* ; Seyrich, M.DESY* ; Wittwer, F. ; Ullsperger, T. ; Nolte, S. ; Batey, D. ; Rau, C. ; Schroer, C. G.DESY*

2019
OSA Washington, DC

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Please use a persistent id in citations: doi:10.1364/OL.44.004622  doi:10.3204/PUBDB-2019-03302

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.

Note: © Optical Society of America

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Contributing Institute(s):

1. FS-PETRA (FS-PETRA)

Research Program(s):

1. 6214 - Nanoscience and Materials for Information Technology (POF3-621) (POF3-621)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2019

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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