2008/01/31 by S. Marchesini, Stefano Marchesini, S. Boutet +32 · 2 citations
Engineering · Physics and Astronomy · #Advanced X-ray Imaging Techniques #Biophotonics #Computer graphics (images) #Computer science #Crystallography and Radiation Phenomena #Holography #Massively parallel #Materials science #Optics #Parallel computing #Particle Accelerators and Free-Electron Lasers #Photonics #Physics #physics.optics
paper · pdf · doi:10.1038/nphoton.2008.154
published as Nature Photonics 2, 560 - 563 (2008) · 5 pages, 3 figures, revtex
arxiv created 2008/02/09 · openalex publication_date 2008/08/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Advances in the development of free-electron lasers offer the realistic prospect of high-resolution imaging to study the nanoworld on the time-scale of atomic motions. We identify X-ray Fourier Transform holography, (FTH) as a promising but, so far, inefficient scheme to do this. We show that a uniformly redundant array (URA) placed next to the sample, multiplies the efficiency of X-ray FTH by more than one thousand (approaching that of a perfect lens) and provides holographic images with both amplitude- and phase-contrast information. The experiments reported here demonstrate this concept by imaging a nano-fabricated object at a synchrotron source, and a bacterial cell at a soft X-ray free-electron-laser, where illumination by a single 15 fs pulse was successfully used in producing the holographic image. We expect with upcoming hard X-ray lasers to achieve considerably higher spatial resolution and to obtain ultrafast movies of excited states of matter.