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Prospects for atomic resolution in-line holography for a 3D determination of atomic structures from single projections.
Advanced Structural and Chemical Imaging Pub Date : 2017-02-06 , DOI: 10.1186/s40679-017-0041-6 F. -R. Chen , C. Kisielowski , D. Van Dyck
Advanced Structural and Chemical Imaging Pub Date : 2017-02-06 , DOI: 10.1186/s40679-017-0041-6 F. -R. Chen , C. Kisielowski , D. Van Dyck
It is now established that the 3D structure of homogeneous nanocrystals can be recovered from in-line hologram of single projections. The method builds on a quantitative contrast interpretation of electron exit wave functions. Since simulated exit wave functions of single and bilayers of graphene reveal the atomic structure of carbon-based materials with sufficient resolution, we explore theoretically how the approach can be expanded beyond periodic carbon-based materials to include non-periodic molecular structures. We show here theoretically that the 3D atomic structure of randomly oriented oleic acid molecules can be recovered from a single projection.
中文翻译:
原子分辨率在线全息技术的前景,用于从单个投影中3D确定原子结构。
现在已经确定,可以从单个投影的线内全息图恢复均匀纳米晶体的3D结构。该方法建立在电子出射波函数的定量对比度解释的基础上。由于单层和双层石墨烯的模拟出口波函数揭示了具有足够分辨率的碳基材料的原子结构,因此我们在理论上探讨了如何将该方法扩展到周期性碳基材料之外,从而包括非周期性分子结构。我们从理论上证明,随机取向的油酸分子的3D原子结构可以从单个投影中恢复。
更新日期:2017-02-06
中文翻译:
原子分辨率在线全息技术的前景,用于从单个投影中3D确定原子结构。
现在已经确定,可以从单个投影的线内全息图恢复均匀纳米晶体的3D结构。该方法建立在电子出射波函数的定量对比度解释的基础上。由于单层和双层石墨烯的模拟出口波函数揭示了具有足够分辨率的碳基材料的原子结构,因此我们在理论上探讨了如何将该方法扩展到周期性碳基材料之外,从而包括非周期性分子结构。我们从理论上证明,随机取向的油酸分子的3D原子结构可以从单个投影中恢复。