Influence of angle's ranges for recording an X-ray fluorescence hologram on reconstructed atomic images

Influence of angle's ranges for recording an X-ray fluorescence hologram on reconstructed atomic images 1 first-author 1 1 1 1 1 Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Shanghai 201800 Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Shanghai 201800 X-ray fluorescence holography (XFH) is a novel method for three-dimensional (3D) imaging of atomic structure. Theoretically, in an XFH experiment, one has to measure the fluorescence energy on a spherical surface to get well-resolved 3D images of atoms. But in practice, the experimental system arrangement does not allow the measurement of the fluorescent intensity oscillations in the full sphere. The holographic information losses because of the limited sampling range (less than 4π) will directly result in defective reconstructed atomic images. In this work, the atomic image of a Fe single crystal (001) was reconstructed by numerically simulating X-ray fluorescence holograms of the crystal at different recording angle's ranges and step lengths. Influences of the ranges of azimuth angles and polar angles and the step length of polar angles on the reconstructed atomic images were discussed. X-ray fluorescence holography Crystal structure Fourier transform References Gabor D . Nature , 1948 , 161 : 777 - 778 Nature Szöke A . Short wavelength coherent radiation: generation and applications , in AIP Conf Proc , Atwood T , Boker J eds, New York : AIP , 1986 , 147 : 361 Short wavelength coherent radiation: generation and applications Tegze M , Faigel G . Europhys Lett , 1991 , 16 : 41 - 46 Europhys Lett Gog T , Eisenhower R A , Menk R H et al . J Electron Spectrosc Relat Phenom , 1998 , 92 : 123 - 129 J Electron Spectrosc Relat Phenom Adams B , Novikov D V , Hiort T et al . Phys Rev B , 1998 , 57 : 7526 - 7534 Phys Rev B Marchesini S , Schmitthüsen F , Tegze M et al . Phys Rev Lett , 2000 , 85 : 4723 - 4726 Phys Rev Lett Faigel G , Tegze M , Marchesini S et al . J Electron Spectrosc Relat Phenom , 2001 , 114-116 : 1063 - 1068 J Electron Spectrosc Relat Phenom Xie H L , Chen J W , Gao H Y et al . Opt Commun , 2004 , 229 : 123 - 129 Opt Commun Xie H L , Chen J W , Gao H Y et al . Optik, in press Optik, in press Xie H L , Gao H Y , Chen J W et al . Acta Phys Sin , 2003 , 52 : 2223 - 2228 Acta Phys Sin Xie H L , Chen J W , Gao H Y et al . Acta Opt Sin, in press Acta Opt Sin, in press Xie H L , Chen J W , Gao H Y et al . X-ray fluorescence holography , ISTM/2003 5th international symposium on test and measurement , 5 : 3703 - 3706 X-ray fluorescence holography Faigel G , Tegze M . Rep Prog Phys , 1999 , 62 : 355 - 393 Rep Prog Phys Born M , Wolf E . Principles of optics, London: Pergamon , 1964 Principles of optics, London: Pergamon Barton J J . Phys Rev Lett , 1991 , 67 : 3106 - 3109 Phys Rev Lett O434.1,O438.1,O766 + .3 2003-03-31 2004-06-01 2021-01-19 2004 Nuclear Science and Techniques 03 15