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Title: Fresnel zone plate stacking in the intermediate field for high efficiency focusing in the hard X-ray regime

Focusing efficiency of Fresnel zone plates (FZPs) for X-rays depends on zone height, while the achievable spatial resolution depends on the width of the finest zones. FZPs with optimal efficiency and sub-100-nm spatial resolution require high aspect ratio structures which are difficult to fabricate with current technology especially for the hard X-ray regime. A possible solution is to stack several zone plates. To increase the number of FZPs within one stack, we first demonstrate intermediate-field stacking and apply this method by stacks of up to five FZPs with adjusted diameters. Approaching the respective optimum zone height, we maximized efficiencies for high resolution focusing at three different energies, 10, 11.8, and 25 keV.
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Diamond Light Source, Ltd., Didcot - Oxfordshire (United Kingdom). Harwell Science and Innovation Campus.
  3. Northwestern Univ., Evanston, IL (United States)
Publication Date:
Grant/Contract Number:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 22; Journal Issue: 23; Journal ID: ISSN 1094-4087
Optical Society of America (OSA)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; X-ray optics; X-ray microscopy; synchrotron radiation; X-rays; diffractive lenses
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1212373