Chen J, Hirayama T, Ishizuka K, Tonomura A
Appl Opt. 1994 Oct 1;33(28):6597-602. doi: 10.1364/AO.33.006597.
One can correct spherical aberration in a transmission electron microscope by using a newly developed aberration-correction method involving off-axis electron holography. In this method, a liquid-crystal spatial-light modulator (LC SLM) is employed during the holographic reconstruction step to compensate for spherical aberration. Application of this method to high-resolution off-axis electron holograms of fine gold particles is presented. The phase distribution of the corrected object wave is visualized by the Zernike phase-contrast method carried out with the same LC SLM.
通过使用一种新开发的涉及离轴电子全息术的像差校正方法，可以校正透射电子显微镜中的球差。在该方法中，在全息重建步骤中使用液晶空间光调制器（LC SLM）来补偿球差。本文介绍了该方法在精细金颗粒的高分辨率离轴电子全息图中的应用。通过使用相同的LC SLM进行泽尼克相衬法来可视化校正后的物波的相位分布。
