期刊
ULTRAMICROSCOPY
卷 110, 期 7, 页码 807-814出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultramic.2010.02.006
关键词
Phase plate; Wave function reconstruction; Phase contrast; Transmission cross-coefficient
类别
资金
- German Research Foundation (Deutsche Forschungsgemeinschaft) [Ge 841/16, Sch 424/11]
A method is described for the reconstruction of the amplitude and phase of the object exit wave function by phase-plate transmission electron microscopy. The proposed method can be considered as in-line holography and requires three images, taken with different phase shifts between undiffracted and diffracted electrons induced by a suitable phase-shifting device. The proposed method is applicable for arbitrary object exit wave functions and non-linear image formation. Verification of the method is performed for examples of a simulated crystalline object wave function and a wave function acquired with off-axis holography. The impact of noise on the reconstruction of the wave function is investigated. (C) 2010 Elsevier B.V. All rights reserved.
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