Use of extended and prepared reference objects in experimental Fourier transform X-ray holography

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The use of one or more gold nanoballs as reference objects for Fourier Transform holography (FTH) is analysed using experimental soft X-ray diffraction from objects consisting of separated clusters of these balls. The holograms are deconvoluted against ball reference objects to invert to images, in combination with a Wiener filter to control noise. A resolution of ~30nm, smaller than one ball, is obtained even if a large cluster of balls is used as the reference, giving the best resolution yet obtained by X-ray FTH. Methods of dealing with missing data due to a beamstop are discussed. Practical prepared objects which satisfy the FTH condition are suggested, and methods of forming them described.
7 pages, 2 figures, submitted to Applied Physics Letters

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Optics

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http://salesiana.dossiersoluciones.com/handle/123456789/86124

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/physics/0405036
 http://arxiv.org/abs/physics/0405036
 Applied Physics Letters 85, 2454-2456 (2004)
 doi:10.1063/1.1795360

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arXiv