Electron Ptychographic Diffractive Imaging of Boron Atoms in LaB₆ Crystals.

ABSTRACT: Ptychographic diffractive imaging has the potential for structural determination of materials without the constraints of relatively small, isolated samples required for conventional coherent diffractive imaging. The increased illumination diversity introduced using multiple measurements (overlapped probe positions) also provides higher sensitivity to phase changes in weakly scattering samples. The resolution of a ptychographic reconstruction is ultimately determined by the diffraction limit for the wavelength of the radiation used. However, in practical experiments using electrons either the maximum collection angle of the detector used to record the data or the partial coherence of the source impose lower resolution limits. Nonetheless for medium energy electrons this suggests a potential

SUBMITTER: Wang P 

PROVIDER: S-EPMC5460146 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature