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

IR Spectrometers01:25

IR Spectrometers

3.3K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
3.3K

You might also read

Related Articles

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

Sort by
Same author

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

Optics express·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: Mar 19, 2026

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

10.2K

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

Huan Wang, Chunlong Wei, Xiangwen Ning

    Applied Optics
    |March 17, 2026
    PubMed
    Summary

    This study introduces a novel prism-grating interferometer and algorithm for precise measurement of large, high-density grating periods. The enhanced method improves accuracy and efficiency, offering a reliable solution for precision manufacturing applications.

    More Related Videos

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.9K
    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    7.8K

    Related Experiment Videos

    Last Updated: Mar 19, 2026

    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

    10.2K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.9K
    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    7.8K

    Area of Science:

    • Optics and Metrology
    • Precision Engineering

    Background:

    • Accurate measurement of large-scale, high-density gratings is crucial for advanced manufacturing.
    • Existing methods face challenges in achieving both high precision and efficiency.

    Purpose of the Study:

    • To develop an accurate and efficient measurement scheme for large-scale, high-density grating periods.
    • To improve upon traditional grating period measurement algorithms.

    Main Methods:

    • Implementation of a prism-grating interferometer combined with a laser interferometer.
    • Development of an improved measurement algorithm based on first-order Taylor expansion least-squares iterative mechanism.
    • Joint processing of displacement and interference data for accurate grating period calculation.

    Main Results:

    • The improved algorithm linearizes nonlinear models, reducing iteration time by 37.1% and decreasing iteration counts.
    • Experimental verification on an 833 nm period grating showed an average period of 833.3367±15.7 pm over a 360 mm range.
    • Achieved average relative repeatability of 4.2 ppm, demonstrating high precision and efficiency.

    Conclusions:

    • The combined prism-grating interferometer and improved algorithm provide a reliable technical solution for large-scale, high-density grating period measurement.
    • The method is adaptable to precision scenarios in semiconductor manufacturing and ultra-precision machining.
    • Offers high precision and efficiency for metrology applications.