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Updated: Sep 11, 2025

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Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
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Far-zone properties of a partially coherent field diffracted by a grating
Optics Express
|August 13, 2025
Summary
The study shows how a partially coherent beam
Area of Science:
- Optics and Photonics
- Wave Phenomena
Background:
- Diffraction is a fundamental wave phenomenon.
- Understanding beam coherence is crucial in optical systems.
Purpose of the Study:
- To investigate the diffraction of partially coherent beams by transmission gratings.
- To analyze the impact of beam properties on far-zone field characteristics.
Main Methods:
- Theoretical analysis of beam propagation.
- Mathematical modeling of diffraction by a transmission grating.
Main Results:
- Far-zone field coherence and angular intensity distribution depend on incident beam's intensity and coherence widths.
- Decreasing coherence leads to broadening of angular intensity distribution.
- All diffraction orders maintain full correlation.
Conclusions:
- Beam coherence significantly influences diffraction patterns.
- Transmission gratings can be used to study coherence properties of light.
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