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

Downregulation of PCAF inhibits vascular smooth muscle cells senescence by reducing oxidative stress injury via activating the Nrf2/ARE pathway.

Clinical hemorheology and microcirculation·2026
Same author

High-speed and high-sensitivity multi-gas detection based on parallel heterodyne LITES sensor.

Light, science & applications·2026
Same author

A flexible ag/PDMS hemispherical array SERS for rapid "touch-and-wipe" sampling and quantitative screening of multi-class contaminants.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2026
Same author

Ultrahigh-sensitivity directional torsion sensor based on a helical asymmetric twin-core fiber Michelson interferometer.

Optics letters·2026
Same author

Coherence-multiplexed FMCW spectroscopy for long-distance multi-point gas sensing.

Optics letters·2026
Same author

Interlocking Au nanospheres-concave nanocubes assemblies on concave anodized aluminum oxide: Tunable plasmonic hotspots for enhanced SERS sensing.

Talanta·2026

Related Experiment Video

Updated: Oct 28, 2025

Label-free Single Molecule Detection Using Microtoroid Optical Resonators
08:53

Label-free Single Molecule Detection Using Microtoroid Optical Resonators

Published on: December 29, 2015

9.4K

Millimeter-level recognition capability of BOTDA based on a transient pump pulse and algorithm enhancement.

Dengwang Zhou, Dexin Ba, Benzhang Wang

    Optics Letters
    |July 15, 2021
    PubMed
    Summary

    A new rising edge demodulation (RED) algorithm significantly improves spatial resolution in Brillouin optical time-domain analysis. This method enhances the ability to detect environmental information with unprecedented precision.

    More Related Videos

    Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
    11:54

    Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

    Published on: March 13, 2017

    9.5K
    Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection
    10:02

    Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

    Published on: February 18, 2014

    9.2K

    Related Experiment Videos

    Last Updated: Oct 28, 2025

    Label-free Single Molecule Detection Using Microtoroid Optical Resonators
    08:53

    Label-free Single Molecule Detection Using Microtoroid Optical Resonators

    Published on: December 29, 2015

    9.4K
    Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
    11:54

    Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

    Published on: March 13, 2017

    9.5K
    Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection
    10:02

    Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

    Published on: February 18, 2014

    9.2K

    Area of Science:

    • Optics
    • Photonics
    • Materials Science

    Background:

    • Brillouin optical time-domain analysis (BOTDA) uses pulsed pumps to measure distributed environmental information via Brillouin gain spectrum (BGS).
    • The spatial resolution (SR) in BOTDA is limited by the width of the BGS, which is influenced by the pump pulse duration and phonon lifetime.

    Purpose of the Study:

    • To introduce a novel algorithm, rising edge demodulation (RED), for enhancing spatial resolution in BOTDA.
    • To improve the accuracy and precision of distributed measurements in BOTDA systems.

    Main Methods:

    • Development of the rising edge demodulation (RED) algorithm, which processes Brillouin information generated by a transient pump pulse.
    • Utilizing a nonlinear weight matrix within the RED algorithm to process the transient pump pulse data.
    • Applying the RED algorithm to Brillouin gain spectrum data obtained from an 8-ns transient pump pulse.

    Main Results:

    • The RED algorithm demonstrated a significant enhancement in spatial resolution in simulations, improving it from 0.8 m to 1 mm (an 800-fold increase).
    • Experimental results showed a 100-fold improvement in spatial resolution, achieving 8 mm using the RED algorithm.
    • The algorithm effectively processes Brillouin information derived from short, transient pump pulses.

    Conclusions:

    • The rising edge demodulation (RED) algorithm offers a substantial advancement in spatial resolution for Brillouin optical time-domain analysis.
    • This technique enables more precise distributed measurements, overcoming previous limitations in BOTDA systems.
    • RED algorithm shows great potential for applications requiring high-resolution environmental sensing.