Ultrafast, ultrabright, X-ray holography using a uniformly-redundant array
| Autor: | Marchesini, S., Boutet, S., Sakdinawat, A. E., Bogan, M. J., Bajt, S., Barty, A., Chapman, H. N., Frank, M., Hau-Riege, S. P., Szoke, A., Cui, C., Howells, M. R., Shapiro, D. A., Spence, J. C. H., Shaevitz, J. W., Lee, J. Y., Hajdu, J., Seibert, M. M. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Nature Photonics 2, 560 - 563 (2008) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/nphoton.2008.154 |
| Popis: | 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. Comment: 5 pages, 3 figures, revtex |
| Databáze: | arXiv |
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