Ultrafast, ultrabright, X-ray holography using a uniformly-redundant array
Abstract
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.
Cite
@article{arxiv.0801.4969,
title = {Ultrafast, ultrabright, X-ray holography using a uniformly-redundant array},
author = {S. Marchesini and S. Boutet and A. E. Sakdinawat and M. J. Bogan and S. Bajt and A. Barty and H. N. Chapman and M. Frank and S. P. Hau-Riege and A. Szoke and C. Cui and M. R. Howells and D. A. Shapiro and J. C. H. Spence and J. W. Shaevitz and J. Y. Lee and J. Hajdu and M. M. Seibert},
journal= {arXiv preprint arXiv:0801.4969},
year = {2008}
}
Comments
5 pages, 3 figures, revtex