Observation of an x-ray vortex
- 15 October 2002
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 27 (20) , 1752-1754
- https://doi.org/10.1364/ol.27.001752
Abstract
Phase singularities are a ubiquitous feature of waves of all forms and represent a fundamental aspect of wave topology. An optical vortex phase singularity occurs when there is a spiral phase ramp about a point phase singularity. We report an experimental observation of an optical vortex in a field consisting of 9-keV x-ray photons. The vortex is created with an x-ray optical structure that imparts a spiral phase distribution to the incident wave field and is observed by use of diffraction about a wire to create a division-of-wave-front interferometer.Keywords
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