CEMES-CNRS 29, rue Jeanne Marvig B.P. 94347 F-31055 Toulouse Cedex, France; Institute of Structure Physics, Technische Universität Dresden, 01062 Dresden, Germany; TEMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
Ultramicroscopy. 2014 Jan;136:42-9. doi: 10.1016/j.ultramic.2013.07.007. Epub 2013 Jul 29.
Dark-field electron holography maps strain in crystal lattices into reconstructed phases over large fields of view. Here we investigate the details of the lattice strain-reconstructed phase relationship by applying dynamic scattering theory both analytically and numerically. We develop efficient analytic linear projection rules for 3D strain fields, facilitating a straight-forward calculation of reconstructed phases from 3D strained materials. They are used in the following to quantify the influence of various experimental parameters like strain magnitude, specimen thickness, excitation error and surface relaxation.
暗场电子全息图将晶格应变映射到重建相位中，观察视场较大。本文通过分析和数值应用动态散射理论研究了晶格应变与重建相位关系的细节。我们为三维应变场开发了有效的解析线性投影规则，便于从三维应变材料中直接计算重建相位。随后，利用这些规则量化了应变大小、样品厚度、激励误差和表面弛豫等各种实验参数的影响。
