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Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Phase-matched generation of coherent soft X-rays
1Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109-2099, USA.
Science (New York, N.Y.)
|June 5, 1998
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.
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).
- 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.
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