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A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution.

U Zastrau1, C Rödel2, M Nakatsutsumi1

  • 1European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany.

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|March 3, 2018
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Summary
This summary is machine-generated.

We developed an extreme ultraviolet microscope for single-shot imaging of laser-produced plasmas. This new tool achieves sub-micrometer resolution, enabling detailed studies of warm dense matter.

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Area of Science:

  • Plasma Physics
  • Optics and Photonics
  • Materials Science

Background:

  • Laser-plasma interactions are crucial for understanding energy transfer and material states.
  • High-resolution imaging is needed to probe the dynamics of laser-heated targets at the micrometer scale.

Purpose of the Study:

  • To develop and demonstrate an extreme ultraviolet (EUV) microscope for single-shot, sub-micrometer imaging of laser-plasma targets.
  • To enable in situ diagnostics for warm dense matter (WDM) research.

Main Methods:

  • Utilized a Schwarzschild objective for high-resolution imaging.
  • Employed a free-electron laser (FEL) at 13.5 nm for illumination.
  • Designed and constructed a specialized microscope for EUV-based scattering imaging.

Main Results:

  • Achieved sub-micrometer spatial resolution in single-shot imaging.
  • Successfully imaged a cryogenic hydrogen jet, including ice fragments.
  • Demonstrated the capability of imaging EUV-heated targets.

Conclusions:

  • The developed EUV microscope provides a novel diagnostic tool for laser-plasma experiments.
  • This technology opens new avenues for studying micrometer-sized samples in warm dense matter research.
  • In situ EUV imaging enhances the understanding of dynamic processes in laser-produced plasmas.