New Journal of Physics· 2026Q1
Incoherent diffraction imaging with a pseudo-thermal light source
- 1citations
- Q1SCImago
- 2026year
Short summary
A table-top pseudo-thermal light source emulates Free Electron Laser (FEL) experiments for incoherent diffraction imaging (IDI), enabling broader exploration and benchmarking of the technique.
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Key points
- Incoherent Diffraction Imaging (IDI) uses second-order spatial correlations of scattered light to retrieve structural information.
- Existing IDI experiments rely on fluorescence excited by ultra-short X-ray pulses at Free Electron Lasers (FELs).
- A new table-top pseudo-thermal light source is proposed as an optical emulator for FEL-based IDI experiments.
- This setup facilitates broader exploration of IDI conditions and benchmarking of imaging models.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Incoherent Diffraction Imaging -IDI -is a lensless imaging technique that has been recently proposed to exploit the partial coherence of incoherently scattered light to retrieve structural information from the scattering centers. Similar to the stellar intensity interferometry of Hanbury Brown and Twiss, the signal builds up on the second-order spatial correlations of the emitted light. The complex spatial distribution of the target is thereby encoded in the spatial intensity fluctuations of the scattered light. The first experimental realisations of this imaging technique have been realised using the fluorescence excited by an ultra-short X-ray pulse at Free Electron Laser (FEL) facilities. Here, we propose an alternative setup based on a table-top Pseudo-Thermal Light Source that works as an optical emulator of the FEL experiment. This setup allows us to explore IDI under a wide range of physically relevant conditions as well as to benchmark numerical and analytical models currently used to determine the imaging capabilities of this technique.
The authors' abstract, as published at the source. New Journal of Physics, 2026 · DOI ↗
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Field: Radiation
RadiationPhysics and Astronomy