Journal article
A universal measure for coherence requirements in diffractive imaging
B Chen, B Abbey, E Balaur, G Van Riessen, M Junker, MWM Jones, AG Peele, CT Putkunz, D Vine, HM Quiney, KA Nugent
Proceedings of SPIE the International Society for Optical Engineering | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2013
DOI: 10.1117/12.2027269
Abstract
The requirements on the spatial and temporal coherence for conventional Coherent Diffractive Imaging (CDI) have been well-established in the literature based on Shannon sampling of the diffracted intensities. The spatial coherence length of the illumination must be larger than twice the lateral dimensions of the sample whilst the temporal coherence length must be larger than the maximum optical path length difference between the two edges of the sample for the highest order diffraction peaks. However, recent approaches to CDI which have included knowledge of the spatial and temporal coherence information in the image reconstruction have allowed us to relax these conventional coherence constr..
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Awarded by Office of Basic Energy Sciences
Funding Acknowledgements
The authors acknowledge the support of the Australian Research Council Centre of Excellence for Coherent X-ray Science. Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science,Office of Basic Energy Sciences(contract no. DEAC0206CH11357).