The brightest, sharpest, fastest X-ray holograms yet

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A coherent X-ray beam illuminates both the sample and a uniformly redundant array placed next to it. The CCD detector (whose center is shielded from the direct beam) collects diffracted X-rays from both sample and URA. Processing the resulting interf ...
A coherent X-ray beam illuminates both the sample and a uniformly redundant array placed next to it. The CCD detector (whose center is shielded from the direct beam) collects diffracted X-rays from both sample and URA. Processing the resulting interference patterns subsequently yields a hologram. Image: Lawrence Berkeley National Laboratory
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The pinhole camera, a technique known since ancient times, has inspired a futuristic technology for lensless, three-dimensional imaging. Working at both the Advanced Light Source (ALS) at the U.S. Department of Energy's Lawrence Berkeley National Laboratory, and at FLASH, the free-electron laser in Hamburg, Germany, an international group of scientists has produced two of the brightest, sharpest x-ray holograms of microscopic objects ever made, thousands of times more efficiently than previous x-ray-holographic methods.


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