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Related Experiment Videos

Single-optical-element soft-x-ray interferometry with a laser-plasma x-ray source.

Ulrich Vogt1, Magnus Lindblom, Per A C Jansson

  • 1Biomedical and X-Ray Physics, Royal Institute of Technology/Albanova, SE-106 91 Stockholm, Sweden. ulrich.vogt@biox.kth.se

Optics Letters
|September 1, 2005
PubMed
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We developed a compact soft-X-ray interferometer for laser-plasma sources. This novel diffractive optic enables high-contrast imaging of phase objects in the water-window range.

Area of Science:

  • Optics and Photonics
  • X-ray Science
  • Plasma Physics

Background:

  • Soft X-ray (SXR) interferometry is crucial for diagnostics.
  • Existing interferometers are often complex and not compatible with pulsed laser-plasma sources.
  • Compact and robust interferometers are needed for advanced SXR applications.

Purpose of the Study:

  • To develop a compact interferometer for the water-window soft-X-ray (SXR) range.
  • To enable operation with readily available laser-plasma sources.
  • To demonstrate interferometric contrast enhancement for phase object imaging.

Main Methods:

  • A single diffractive optical element (DOE) was designed to focus X-rays into two secondary sources.
  • The interferometer was tested using a liquid-nitrogen jet laser-plasma source emitting at lambda=2.88 nm.

Related Experiment Videos

  • Scalar wave-field propagation simulations were performed for theoretical analysis.

    • Main Results:

    • The interferometer successfully generated interference patterns from the laser-plasma source.
    • Experimental results showed good agreement with scalar wave-field propagation simulations.
    • The DOE demonstrated simultaneous imaging capabilities, enabling microscopy.

    Conclusions:

    • A compact and efficient SXR interferometer compatible with laser-plasma sources has been realized.
    • The developed diffractive optic offers a versatile solution for both interferometry and imaging.
    • This technology enhances soft-X-ray microscopy by providing interferometric contrast for phase objects.