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

Tristetraprolin protects against osteoarthritis by restraining chondrocyte mitochondrial DNA release through post-transcriptional regulation.

Journal of orthopaedic translation·2026
Same author

Effect of Internal Defects on the Compression Behavior of Helical Layered Square Honeycombs Fabricated by Selective Laser Melting.

Materials (Basel, Switzerland)·2026
Same author

TREM2 Regulates Microglial Activation via the ERK/p38 Signaling Pathway: Implications for the Pathogenesis of Experimental Autoimmune Uveitis.

Investigative ophthalmology & visual science·2026
Same author

Profiling major volatile components in apricot fruit sheds light on the molecular mechanisms underlying low-temperature-mediated volatile release.

Food chemistry. Molecular sciences·2026
Same author

Sortase-Mediated Dual-Display Phage Bioluminescent Immunoassay for Detection of <i>Vibrio parahemolyticus</i> Using Affinity-Enhanced Nanobody.

Analytical chemistry·2026
Same author

How organs react under fasting or glucose-insulin status: a self-controlled study using <sup>18</sup>F-FDG total-body PET/CT.

European journal of nuclear medicine and molecular imaging·2026

Related Experiment Video

Updated: Mar 26, 2026

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

9.9K

High-speed high-resolution heterodyne interferometer using a laser with low beat frequency.

Xiaofei Diao, Pengcheng Hu, Zi Xue

    Applied Optics
    |February 3, 2016
    PubMed
    Summary

    A novel heterodyne interferometer achieves high-speed, high-resolution measurements by utilizing opposite Doppler shifts. This overcomes laser beat frequency limitations, enabling precise measurements beyond traditional constraints.

    More Related Videos

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    22.6K
    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
    09:38

    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

    Published on: December 18, 2015

    12.8K

    Related Experiment Videos

    Last Updated: Mar 26, 2026

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.9K
    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    22.6K
    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
    09:38

    Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

    Published on: December 18, 2015

    12.8K

    Area of Science:

    • Optics and Photonics
    • Metrology
    • Instrumentation

    Background:

    • Traditional heterodyne interferometers are limited by laser beat frequency, restricting measurable speeds.
    • Achieving high-speed and high-resolution measurements simultaneously presents a significant challenge in metrology.

    Purpose of the Study:

    • To develop a high-speed, high-resolution heterodyne interferometer.
    • To overcome the speed limitations imposed by the laser source's beat frequency.

    Main Methods:

    • Utilizing a laser with a low beat frequency and two spatially separated parallel beams of different frequencies.
    • Optically generating two interference signals with opposite Doppler shifts.
    • Employing two identical phasemeters for signal processing and selective signal usage based on target speed.

    Main Results:

    • Achieved a measurement resolution of 0.62 nm.
    • Demonstrated measurable speeds exceeding the restriction determined by the laser's beat frequency.
    • Showcased a displacement difference of less than 40 nm over a 900 mm travel range compared to a commercial interferometer.

    Conclusions:

    • The developed heterodyne interferometer successfully overcomes beat frequency limitations for high-speed measurements.
    • The system offers superior resolution and accuracy for precision displacement measurements.
    • This technology has significant implications for advanced manufacturing and scientific research requiring precise motion control.