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Related Experiment Videos

Phase-matched generation of coherent soft X-rays

Rundquist1, Durfee, Chang

  • 1Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109-2099, USA.

Science (New York, N.Y.)
|June 5, 1998
PubMed
Summary

Researchers achieved phase-matched harmonic conversion, transforming visible laser light into soft x-rays. This breakthrough significantly boosts coherent x-ray output for advanced scientific research.

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Area of Science:

  • Laser Physics
  • X-ray Science
  • Nonlinear Optics

Background:

  • Harmonic conversion is crucial for generating shorter wavelengths from lasers.
  • Achieving phase-matching is essential for efficient frequency conversion.
  • Soft x-rays offer unique properties for scientific investigations.

Purpose of the Study:

  • To demonstrate phase-matched harmonic conversion of visible laser light into soft x-rays.
  • To utilize guided-wave frequency conversion for efficient light upshifting.
  • To enhance coherent x-ray output for new experimental possibilities.

Main Methods:

  • Employed a recently developed guided-wave frequency conversion technique.
  • Upshifted visible laser light (800 nm) to the soft x-ray range (17–32 nm).

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  • Utilized a small-scale, high repetition-rate laser system.

    • Main Results:

    • Demonstrated successful phase-matched harmonic conversion into the soft x-ray spectrum.
    • Achieved a significant increase in coherent x-ray output (10^2–10^3 times) compared to non-phase-matched methods.
    • Validated the efficiency of guided-wave frequency conversion for soft x-ray generation.

    Conclusions:

    • Phase-matched harmonic conversion provides a highly efficient route to soft x-ray generation.
    • The developed technique enables new experimental investigations in linear and nonlinear x-ray science.
    • This method offers a compact and powerful source for advanced scientific exploration.