Multiple defocused coherent diffraction imaging: Method for simultaneously reconstructing objects and probe using X-ray free-electron lasers

Makoto Hirose, Kei Shimomura, Akihiro Suzuki, Nicolas Burdet, Yukio Takahashi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The sample size must be less than the diffraction-limited focal spot size of the incident beam in single-shot coherent X-ray diffraction imaging (CXDI) based on a diffract-before-destruction scheme using X-ray free electron lasers (XFELs). This is currently a major limitation preventing its wider applications. We here propose multiple defocused CXDI, in which isolated objects are sequentially illuminated with a divergent beam larger than the objects and the coherent diffraction pattern of each object is recorded. This method can simultaneously reconstruct both objects and a probe from the coherent X-ray diffraction patterns without any a priori knowledge. We performed a computer simulation of the prposed method and then successfully demonstrated it in a proof-of-principle experiment at SPring-8. The prposed method allows us to not only observe broad samples but also characterize focused XFEL beams.

Original languageEnglish
Pages (from-to)11917-11925
Number of pages9
JournalOptics Express
Volume24
Issue number11
DOIs
Publication statusPublished - 2016 May 30
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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