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Use of extended and prepared reference objects in experimental Fourier transform X-ray holography | | H. He
; M. Howells
; S. Marchesini
; H. N. Chapman
; U. Weierstall
; H. A. Padmore
; & J. C. H. Spence
; | | Date: |
7 May 2004 | | Journal: | Applied Physics Letters 85, 2454-2456 (2004) DOI: 10.1063/1.1795360 | | Subject: | Optics | physics.optics | | Abstract: | 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. | | Source: | arXiv, physics/0405036 | | Services: | Forum | Review | PDF | Favorites | |
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