X-ray vortices with high topological charge

D. Cojoc*, B. Kaulich, A. Carpentiero, S. Cabrini, L. Businaro, E. Di Fabrizio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


The aim of this work is to fabricate diffractive optical elements (DOEs) that generate optical vortices with high topological charge and investigate their usefulness for X-rays. Using e-beam lithography and electroplating techniques we fabricated binary amplitude DOEs in gold on silicon nitrade membranes. The first test of the DOEs, showing the ability to generate vortices with topological charge as high as 64 at an energy of 700 eV was performed in a scanning X-ray microscope setup at Twinmic beamline of Elettra Synchrotron.

Original languageEnglish (US)
Pages (from-to)1360-1363
Number of pages4
JournalMicroelectronic Engineering
Issue number4-9 SPEC. ISS.
StatePublished - Apr 2006
Externally publishedYes


  • Diffractive optical elements
  • Optical vortices
  • X-ray microscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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