Laboratorium für Elektronenmikroskopie, Karlsruher Institut für Technologie (KIT), D-76128 Karlsruhe, Germany.
Ultramicroscopy. 2010 Jun;110(7):807-14. doi: 10.1016/j.ultramic.2010.02.006. Epub 2010 Feb 12.
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.
介绍了一种通过相板透射电子显微镜重建物体出射波函数的幅度和相位的方法。所提出的方法可以被认为是同轴全息术，需要三幅图像，通过适当的相移装置在未衍射和衍射电子之间引入不同的相移来拍摄。所提出的方法适用于任意物体出射波函数和非线性成像。通过模拟晶体物体波函数和离轴全息术获得的波函数的示例验证了该方法。研究了噪声对波函数重建的影响。
