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Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
X-ray Crystallography02:18

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
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Related Experiment Video

Updated: Jun 20, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

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Published on: October 11, 2016

Edge diffraction of high-frequency coherence functions in a random medium.

R Mazar, L B Felsen

    Optics Letters
    |September 10, 2009
    PubMed
    Summary
    This summary is machine-generated.

    A new geometrical theory of diffraction is used to analyze high-frequency fields in random media. This method applies to line-source diffraction by a wedge, advancing wave propagation studies.

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    Area of Science:

    • Electromagnetism
    • Wave Propagation
    • Optics

    Background:

    • High-frequency fields in random media present complex propagation challenges.
    • Understanding coherence functions is crucial for analyzing wave phenomena.

    Purpose of the Study:

    • To apply a novel geometrical theory of diffraction to coherence functions.
    • To solve the canonical problem of line-source field diffraction by a perfectly reflecting wedge.

    Main Methods:

    • Utilizing a recently formulated geometrical theory of diffraction.
    • Employing transport of two-point coherence functions and random fields.
    • Applying multiscale expansion propagators for solution strategy.

    Main Results:

    • The study successfully applies the geometrical theory to the wedge diffraction problem.
    • The solution strategy addresses various regular and transitional ray-optical domains.
    • Demonstrates a method applicable to other complex configurations.

    Conclusions:

    • The geometrical theory of diffraction provides an effective framework for analyzing coherence functions.
    • The employed methods offer a pathway for solving other diffraction problems in random media.
    • Advances the understanding of wave propagation in complex environments.