报告题目: Phase retrieval algorithms and ptychography

报告人: Dr. Sander Konijnenberg, Optics Research Group, Delft University of Technology

报告时间：2017年1月15日，下午13:30

报告地点：物理科技楼103

报告摘要：Coherent diffractive imaging (CDI) is a technique that can be used to image a sample without having to use lenses. Especially for X-ray imaging this may be useful, since the reconstructed image will not suffer due to low-quality focusing optics. One way of performing CDI is by using iterative phase retrieval algorithms. One such algorithm is ptychography, in which the probe that illuminates the sample is shifted to different positions, and for each position a far-field diffraction pattern is recorded. In this talk we will briefly discuss some iterative phase retrieval algorithms, with a special focus on ptychography.