Bragg coherent modulation imaging for highly strained nanocrystals: a numerical study

Zhao, Jiangtao1,2; Vartanyants, Ivan A.2; Zhang, Fucai1

2023-10-01

10.1107/S1600576723007720

JOURNAL OF APPLIED CRYSTALLOGRAPHY   影响因子和分区

1600-5767

Bragg coherent diffraction imaging (BCDI) is a unique and powerful method for tracking 3D strain fields non-destructively. While BCDI has been successfully applied to many scientific research fields and is in high demand, the reconstructed results for highly strained crystals are still subject to substantial uncertainties. Here, progress in improving the suitability of BCDI for general samples by exploiting wavefront modulation is reported. Extensive numerical simulations demonstrate that significant improvements over the current method for reconstructing highly strained model nanocrystals can be achieved. The proposed method strongly suppresses the appearance of ambiguous solutions, and exhibits fast convergence and high robustness in phase retrieval. Possible experimental difficulties in implementing this method are discussed in detail.

strain Bragg coherent diffraction imaging wavefront modulation phase retrieval nanocrystals numerical simulations

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China["12074167","11775105"] ; Shenzhen Science and Technology Program[KQTD20170810110313773] ; Centers for Mechanical Engineering Research and Education at MIT and SUSTech[6941806] ; Postdoctoral Research Foundation of China[2021M701566]

Chemistry ; Crystallography

Chemistry, Multidisciplinary ; Crystallography

WOS:001085065300023

INT UNION CRYSTALLOGRAPHY

20234314938965

Diffraction ; Numerical methods ; Numerical models ; Wavefronts

Nanotechnology:761 ; Mathematics:921 ; Numerical Methods:921.6 ; Crystalline Solids:933.1

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, 1088 Xueyuan Ave, Shenzhen 518055, Peoples R China
2.Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany

Zhao, Jiangtao,Vartanyants, Ivan A.,Zhang, Fucai. Bragg coherent modulation imaging for highly strained nanocrystals: a numerical study[J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY,2023,56:1528-1536.

Zhao, Jiangtao,Vartanyants, Ivan A.,&Zhang, Fucai.(2023).Bragg coherent modulation imaging for highly strained nanocrystals: a numerical study.JOURNAL OF APPLIED CRYSTALLOGRAPHY,56,1528-1536.

Zhao, Jiangtao,et al."Bragg coherent modulation imaging for highly strained nanocrystals: a numerical study".JOURNAL OF APPLIED CRYSTALLOGRAPHY 56(2023):1528-1536.