Open AccessPtychographical intensity interferometry imaging with incoherent light
Author(s) -
Wentao Wang,
Hui Chen,
Yuan Yuan,
Qi Han,
Gao Wang,
Huaibin Zheng,
Jianbin Liu,
Chao Wang
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.020396
Subject(s) - interferometry , optics , computer science , phase retrieval , measure (data warehouse) , artificial intelligence , computer vision , light intensity , ghost imaging , physics , fourier transform , quantum mechanics , database
Intensity interferometry (II), the landmark of the second-order correlation, enables very long baseline observations at optical wavelengths, providing imaging with microarcsecond resolution. However, the unreliability of traditional phase retrieval algorithms required to reconstruct images in II has hindered its development. We here develop a method that circumvents this challenge, which enables II to reliably image complex shaped objects. Instead of measuring the whole object, we measure it part by part with a probe moving in a ptychographic way: adjacent parts overlap with each other. A relevant algorithm is developed to reliably and rapidly recover the object in a few iterations. Moreover, we propose an approach to remove the requirement for a precise knowledge of the probe, providing an error-tolerance of more than 50% for the location of the probe in our experiments. Furthermore, we extend II to short distance scenarios, providing a lensless imaging method with incoherent light and paving a way towards applications in X-ray imaging.