Ptychographic phase retrieval by applying hybrid input-output (HIO) iterations sequentially

Ptychographic phase retrieval by applying hybrid input-output (HIO) iterations sequentially

Konijnenberg, A.P. (TU Delft ImPhys/Optics)

2017-06-26

We have designed a ptychographical algorithm (HIO-PIE) in which HIO (Hybrid Input-Output) iterations are applied for each probe position sequentially. Simulations indicated that HIO-PIE tends to outperform PIE (Ptychographical Iterative Engine) even in the presence of shot noise, especially when the number of probe positions is small. Thus, this adaptation may reduce the number of scan positions required for a successful image reconstruction, thereby relaxing the constraints on an experimental setup. In this article, experimental results obtained using an SLM (spatial light modulator) and visible laser light (633 nm) show that when few probe positions are used, HIO-PIE converges significantly faster than PIE

Ptychography
Coherent Diffractive Imaging
Phase retrieval

http://resolver.tudelft.nl/uuid:17264cce-40d0-4454-8913-d780041beff0

https://doi.org/10.1117/12.2270227

Proceedings of Digital Optical Technologies 2017, 10335

SPIE Digital Optical Technologies 2017, 2017-06-25 → 2017-06-29, Internationales Congress Center Munich, Munich, Germany

Institutional Repository

conference paper

© 2017 A.P. Konijnenberg