Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Measurement of a high-density grating period based on a prism-grating interferometer.

Applied optics·2026
Same author

Wideband mechanism of superwavelength gratings with a low blaze angle.

Optics express·2025
Same author

Analytical equations for the three diffraction orders of a fused silica grating at the second Bragg incidence.

Journal of the Optical Society of America. A, Optics, image science, and vision·2025
Same author

Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence.

Optics express·2025
Same author

High-efficiency three-port beam splitter under normal incidence.

Journal of the Optical Society of America. A, Optics, image science, and vision·2025
Same author

All-dielectric metasurfaces enabled by quasi-BIC for high-<i>Q</i> near-perfect light absorption.

Optics letters·2024

Related Experiment Video

Updated: May 5, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

5.5K

Doppler-enhanced displacement measurement method based on scanning reference gratings.

Rui Yang, Yongfang Xie, Changhe Zhou

    Optics Express
    |May 4, 2026
    PubMed
    Summary

    This study introduces a Doppler-enhanced scanning reference gratings (SRG) method for precise displacement measurement. It overcomes environmental noise, achieving sub-nanometer repeatability for reliable optical measurements.

    More Related Videos

    Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
    06:56

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

    Published on: May 23, 2017

    11.1K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

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

    Published on: October 11, 2016

    9.1K

    Related Experiment Videos

    Last Updated: May 5, 2026

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    5.5K
    Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
    06:56

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

    Published on: May 23, 2017

    11.1K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

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

    Published on: October 11, 2016

    9.1K

    Area of Science:

    • Metrology
    • Optical Measurement
    • Nanotechnology

    Background:

    • Conventional grating interferometry is limited by environmental noise (vibrations, airflow, laser drift).
    • These limitations hinder high-precision displacement measurements.

    Purpose of the Study:

    • To propose a Doppler-enhanced displacement measurement method using scanning reference gratings (SRG).
    • To overcome the environmental noise limitations of conventional methods.
    • To achieve sub-nanometer repeatability in optical-period measurements.

    Main Methods:

    • Utilizing the interference between a holographic light field and a scanning reference grating (SRG) to generate Moiré fringes.
    • Introducing controlled Doppler motion into the SRG process for signal modulation.
    • Employing continuous relative motion and temporal averaging to suppress disturbances.

    Main Results:

    • The proposed method generates a stable carrier for displacement extraction.
    • Sub-nanometer repeatability in optical-period measurement was achieved.
    • Significant suppression of random vibrations and airflow disturbances was demonstrated.

    Conclusions:

    • The Doppler-enhanced SRG method offers a new strategy for high-precision optical displacement measurement.
    • The technique effectively exploits the sub-nanometer measurement capability of SRG.
    • This approach enhances measurement reliability in noisy environments.