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Proceedings Paper

Partial coherence and the influence of overlap and curvature in ptychography
Author(s): Guido Cadenazzi; Bo Chen; Timur Gureyev; H. M. Quiney; K. A. Nugent; B. Abbey
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Paper Abstract

In this paper, we use optical coherence theory to define the limit for the spatial coherence length with respect to the degree of overlap between adjacent probe positions in ptychography. The influence of the degree of curvature of the probe in relation to partial coherence in the Fresnel geometry for a fixed overlap is also considered. This work has implications for the application of ptychographic coherent imaging using partially coherent sources. We validate these results through a simulation study of coherence versus overlap parameter and curvature.

Paper Details

Date Published: 2 January 2018
PDF: 9 pages
Proc. SPIE 10456, Nanophotonics Australasia 2017, 104565X (2 January 2018); doi: 10.1117/12.2283395
Show Author Affiliations
Guido Cadenazzi, La Trobe Univ. (Australia)
Bo Chen, La Trobe Univ. (Australia)
Timur Gureyev, Univ. of Melbourne (Australia)
H. M. Quiney, Univ. of Melbourne (Australia)
K. A. Nugent, La Trobe Univ. (Australia)
B. Abbey, La Trobe Univ. (Australia)

Published in SPIE Proceedings Vol. 10456:
Nanophotonics Australasia 2017
James W. M. Chon; Baohua Jia, Editor(s)

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