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Updated: Jun 27, 2025

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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
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Femtosecond multimodal imaging with a laser-driven X-ray source
Adam Doherty1, Sylvain Fourmaux2, Alberto Astolfo1
1Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK.
Summary
This study demonstrates multimodal X-ray imaging using a compact laser-plasma accelerator
Area of Science:
- Physics
- Engineering
- Medical Imaging
Background:
- Laser-plasma accelerators offer compact X-ray sources with femtosecond pulse durations.
- Betatron sources from these accelerators have unique properties for advanced imaging.
- Combining these sources with multimodal imaging techniques is an unexplored area.
Purpose of the Study:
- To demonstrate multimodal X-ray imaging using a betatron source from a laser-plasma accelerator.
- To integrate edge illumination-beam tracking (EI-BT) with a compact X-ray source.
- To achieve single-shot acquisition of transmission, refraction, and scattering data.
Main Methods:
- Utilized a laser-plasma accelerator to generate a betatron X-ray source.
- Employed the edge illumination-beam tracking (EI-BT) technique for data acquisition.
- Performed single-shot multimodal X-ray imaging.
Main Results:
- Successfully demonstrated multimodal X-ray imaging (transmission, refraction, scattering).
- Achieved imaging with a compact X-ray source at the femtosecond timescale.
- Showcased the capability of EI-BT for single-shot multimodal acquisition.
Conclusions:
- Laser-plasma accelerators can serve as compact sources for advanced X-ray imaging.
- EI-BT combined with betatron sources enables efficient multimodal imaging.
- This approach offers a novel pathway for high-resolution, time-resolved X-ray diagnostics.
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