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24 April 2024

» pubmed » pmid17931040

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Lensless diffractive imaging using tabletop coherent high-harmonic soft-x-ray beams
Richard L Sandberg ; Ariel Paul ; Daisy A Raymondson ; Steffen Hädrich ; David M Gaudiosi ; Jim Holtsnider ; Ra’anan I Tobey ; Oren Cohen ; Margaret M Murnane ; Henry C Kapteyn ; Changyong Song ; Jianwei Miao ; Yanwei Liu ; Farhad Salmassi ;
Date:	31 Aug 2007
Journal:	Phys Rev Lett, 99 (9), 098103
Abstract:	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.
Source:	PubMed, pmid17931040
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