Near-field Multislice Ptychography

This folder includes all near-field multi-slice ptychography data for both optical bench experiment and x-ray experiment which appeared in this paper.

An example ThreePIE MATLAB code of the multislice ptychography for use with data collected in a near-field cone beam experiment is attached. 
[note non-commercial licence]

Ptychography is a form of lens-free coherent diffractive imaging now used extensively in electron and synchrotron-based X-ray microscopy. In its near-field implementation, it offers a route to quantitative phase imaging at an accuracy and resolution competitive with holography, with the added advantages of extended field of view and blind deconvolution of the illumination beam profile from the sample image. In this paper we show how near-field ptychography can be combined with a multi-slice model, adding to this list of advantages the unique ability to recover high-resolution phase images of larger samples, whose thickness places them beyond the depth of field of alternative methods.

本文件夹收集了本文中出现的近场多切片ptychography实验所涉及的光学台实验和X射线实验的所有近场多切片ptychography数据。附件中提供了一个用于近场锥束实验数据的三PIE MATLAB代码示例。[备注：非商业许可] ptychography是一种无透镜相干衍射成像技术，目前广泛应用于基于电子和同步辐射的X射线显微镜中。在其近场实现中，它提供了一种定量相位成像的途径，其准确性和分辨率可与全息术相媲美，且具有视野范围更广和从样品图像中盲去卷积照明光束轮廓的附加优势。在本文中，我们展示了如何将近场ptychography与多切片模型相结合，从而进一步增添了恢复更大样品的高分辨率相位图像的独特能力，这些样品的厚度使得它们超出了其他方法的深度场范围。

搜集汇总

背景与挑战

背景概述

该数据集包含近场多切片ptychography的实验数据，支持光学和X射线实验，并附有MATLAB处理代码示例。数据集作为补充材料，展示了一种能够对厚样品进行高分辨率相位成像的创新技术。