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Related Experiment Video

Updated: Jun 15, 2026

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
11:47

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Published on: February 27, 2013

Moiré interferometry with white light.

D Post

    Applied Optics
    |March 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

    An auxiliary compensator grating eliminates the need for monochromatic light in high-sensitivity moiré interferometry. This innovation enables achromatic moiré interference using white light, opening applications in dynamic moiré photography.

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    Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
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    Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
    06:56

    Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

    Published on: May 23, 2017

    Area of Science:

    • Optics and Photonics
    • Interferometry
    • Diffraction Gratings

    Background:

    • High-sensitivity moiré interferometry traditionally necessitates monochromatic light sources.
    • This requirement limits practical applications, particularly in dynamic measurements.
    • Existing methods lack the flexibility to utilize broadband or white light sources.

    Purpose of the Study:

    • To develop a method for achieving high-sensitivity moiré interferometry without monochromatic light.
    • To demonstrate the effectiveness of an auxiliary compensator grating for chromatic compensation.
    • To explore potential applications of achromatic moiré interferometry.

    Main Methods:

    • An auxiliary compensator grating was introduced to remove the monochromatic light requirement.
    • Experimental verification was performed using white light with a sensitivity of 0.833 microm/fringe.
    • The compensation method was applied to configurations including moiré fringe multiplication and minimum-deviation arrangements.

    Main Results:

    • The auxiliary compensator grating successfully enabled achromatic moiré interference with white light.
    • Chromatic compensation proved effective for both virtual and real reference gratings.
    • The moiré interference system achieved a nearly zero phase difference between interfering beams (+/-pi range).

    Conclusions:

    • An auxiliary compensator grating effectively eliminates the need for monochromatic light in high-sensitivity moiré interferometry.
    • This achromatic compensation method broadens the applicability of moiré techniques.
    • Potential applications include high-sensitivity dynamic moiré photography using readily available light sources.