Gao, P. Wang*, F. Zhang*, G. Martinez, P. Nellist, X. Pan, A. Kirkland, “Electron ptychographic microscopy for three-dimensional imaging”, Nature Commun, 8:163 (2017), DOI: 10.1038/s41467-017-00150-1.

【原文】

Electron ptychographic microscopy for three-dimensional imaging

ABSTRACT

Knowing the three-dimensional structural information of materials at the nanometer scale is essential to understanding complex material properties. Electron tomography retrieves three-dimensional structural information using a tilt series of two-dimensional images. In this paper, we report an alternative combination of electron ptychography with the inverse multislice method. We demonstrate depth sectioning of a nanostructured material into slices with 0.34 nm lateral resolution and with a corresponding depth resolution of about 24–30 nm. This three-dimensional imaging method has potential applications for the three-dimensional structure determination of a range of objects, ranging from inorganic nanostructures to biological macromolecules.