High-quality imaging of large areas through path-difference ptychography

Fuente: arXiv
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Auteurs principaux: Cui, Jizhe, Zheng, Yi, Sun, Kang, Yang, Wenfeng, Sha, Haozhi, Yu, Rong
Format: Preprint
Publié: 2024
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author Cui, Jizhe
Zheng, Yi
Sun, Kang
Yang, Wenfeng
Sha, Haozhi
Yu, Rong
author_facet Cui, Jizhe
Zheng, Yi
Sun, Kang
Yang, Wenfeng
Sha, Haozhi
Yu, Rong
contents Tilting planar samples for multi-zone-axes observation is a routine procedure in electron microscopy. However, this process invariably introduces optical path differences in the electron beam across different sample positions, significantly compromising image quality, particularly over large fields of view. To address this challenge, we developed path difference ptychography (PDP), a method capable of decoupling path differences from the four-dimensional data during reconstruction. This enables the acquisition of high-quality, large-scale images, facilitating a more comprehensive understanding and analysis of materials microstructure. Moreover, PDP has the potential to promote the widespread application of ptychographic tomography in the analysis of planar samples.
format Preprint
id arxiv_https___arxiv_org_abs_2408_11332
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle High-quality imaging of large areas through path-difference ptychography
Cui, Jizhe
Zheng, Yi
Sun, Kang
Yang, Wenfeng
Sha, Haozhi
Yu, Rong
Materials Science
Optics
Tilting planar samples for multi-zone-axes observation is a routine procedure in electron microscopy. However, this process invariably introduces optical path differences in the electron beam across different sample positions, significantly compromising image quality, particularly over large fields of view. To address this challenge, we developed path difference ptychography (PDP), a method capable of decoupling path differences from the four-dimensional data during reconstruction. This enables the acquisition of high-quality, large-scale images, facilitating a more comprehensive understanding and analysis of materials microstructure. Moreover, PDP has the potential to promote the widespread application of ptychographic tomography in the analysis of planar samples.
title High-quality imaging of large areas through path-difference ptychography
topic Materials Science
Optics
url https://arxiv.org/abs/2408.11332