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

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector.

Physical review letters·2026
Same author

Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.

Physical review letters·2025
Same author

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.

Physical review letters·2025
Same author

Neighborhood disorder and depressive symptoms in Jamaican adults: the mediating roles of neighborhood crime and safety problems and collective efficacy.

Frontiers in epidemiology·2025
Same author

Observation of tt[over ¯] Production in Pb+Pb Collisions at sqrt[s_{NN}]=5.02  TeV with the ATLAS Detector.

Physical review letters·2025
Same author

Search for Dark Matter Produced in Association with a Dark Higgs Boson in the bb[over ¯] Final State Using pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.

Physical review letters·2025

Related Experiment Video

Updated: Mar 18, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

6.6K

Integrating cavity based gas cells: a multibeam compensation scheme for pathlength variation.

S Bergin, J Hodgkinson, D Francis

    Optics Express
    |July 14, 2016
    PubMed
    Summary

    A new ratiometric setup for gas analysis corrects for sphere wall contamination, enabling continuous measurement of gas absorption coefficients without recalibration. This method significantly reduces errors caused by contamination.

    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
    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads
    07:58

    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

    Published on: July 25, 2025

    1.0K

    Related Experiment Videos

    Last Updated: Mar 18, 2026

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
    15:25

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

    Published on: February 4, 2018

    6.6K
    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
    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads
    07:58

    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

    Published on: July 25, 2025

    1.0K

    Area of Science:

    • Spectroscopy
    • Analytical Chemistry
    • Optical Engineering

    Background:

    • Integrating spheres are crucial for gas absorption measurements.
    • Sphere wall contamination can alter optical pathlength, leading to inaccurate gas absorption coefficients.
    • Recalibration is often required to compensate for contamination, disrupting continuous monitoring.

    Purpose of the Study:

    • To develop a self-calibrating ratiometric setup for gas absorption measurements using an integrating sphere.
    • To correct for pathlength variations caused by sphere wall contamination.
    • To enable continuous determination of gas absorption coefficients without frequent recalibration.

    Main Methods:

    • A four-beam ratiometric optical setup was designed for an integrating sphere gas cell.
    • The setup measures gas absorption at 1651nm, specifically demonstrating with methane.
    • The ratiometric approach compensates for changes in optical pathlength due to sphere wall contamination.

    Main Results:

    • Uncompensated contamination of 1.2% of the sphere wall caused a ≈41% error in gas absorption coefficient.
    • The ratiometric scheme reduced this error to ≈2%.
    • The technique demonstrated effective correction for pathlength variations.

    Conclusions:

    • The four-beam ratiometric setup provides a robust method for continuous gas absorption coefficient determination.
    • This approach minimizes errors from sphere wall contamination, enhancing measurement accuracy and reliability.
    • Potential limitations, such as severe sphere window contamination, require further investigation.