Lensless diffractive imaging using tabletop coherent high-harmonic soft-X-ray beams

Phys Rev Lett. 2007 Aug 31;99(9):098103. doi: 10.1103/PhysRevLett.99.098103. Epub 2007 Aug 29.


We present the first experimental demonstration of lensless diffractive imaging using coherent soft x rays generated by a tabletop soft-x-ray source. A 29 nm high harmonic beam illuminates an object, and the subsequent diffraction is collected on an x-ray CCD camera. High dynamic range diffraction patterns are obtained by taking multiple exposures while blocking small-angle diffraction using beam blocks of varying size. These patterns reconstruct to images with 214 nm resolution. This work demonstrates a practical tabletop lensless microscope that promises to find applications in materials science, nanoscience, and biology.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Microscopy, Electron, Scanning* / instrumentation
  • X-Ray Diffraction* / instrumentation
  • X-Rays*