Enhancement of phase retrieval capability in ptychography by using strongly scattering property of the probe-generating device

In common ptychographic coherent diffractive imaging (PCDI) systems, the probe-generating devices typically exhibit strong scattering, which is not fully used. Here, we report the reasonableness of using the diffraction pattern of the probe-generating device as the frequency-domain information of th...

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Bibliographic Details
Published in:Optics express 2018-11, Vol.26 (23), p.30128-30145
Main Authors: Zhang, Jianhua, Fan, Jiadong, Sun, Zhibin, Yao, Shengkun, Tong, Yajun, Tai, Renzhong, Jiang, Huaidong
Format: Article
Language:English
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Summary:In common ptychographic coherent diffractive imaging (PCDI) systems, the probe-generating devices typically exhibit strong scattering, which is not fully used. Here, we report the reasonableness of using the diffraction pattern of the probe-generating device as the frequency-domain information of the scanning probe located in the sample plane, and we propose a method introducing this frequency-domain information into an iterative process to improve the imaging quality of PCDI. The new method was demonstrated using both a visible laser source and a synchrotron radiation X-ray source; the proposed method significantly improved the imaging quality in both demonstrations.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.030128