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Related Experiment Video

Updated: Jun 20, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Tunable moiré grating for optical mapping.

O Kafri, A Livuat

    Optics Letters
    |August 19, 2009
    PubMed
    Summary

    A tunable grating using moiré patterns is proposed. This method demonstrates moiré mapping, offering potential applications in optics and material science.

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    Geometric bowing effect of a laser beam.

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    Moire deflectometry with a focused beam: radius of curvature, microscopy, and thickness analysis.

    Applied optics·2010
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    Refractive index measurement of optical windows by an interferometric-deflectometric method.

    Applied optics·2010
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    Comparison and combined operation of a moire deflectometer, Fizeau interferometer, and schlieren device.

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    Area of Science:

    • Optics and Material Science
    • Diffraction and Interference

    Background:

    • Traditional gratings lack tunability.
    • Moiré patterns arise from the superposition of periodic structures.

    Purpose of the Study:

    • To propose and demonstrate a tunable grating based on moiré patterns.
    • To explore moiré mapping applications using this tunable grating.

    Main Methods:

    • Superimposing two gratings at a variable angle to create a moiré pattern.
    • Utilizing the moiré pattern as a tunable diffraction grating.

    Main Results:

    • Successful creation of a tunable grating effect using moiré patterns.
    • Demonstration of moiré mapping capabilities.

    Conclusions:

    • Moiré patterns offer a novel approach to tunable gratings.
    • The method has potential applications in optical measurements and material characterization.

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