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    One-dimensional interferometric Rayleigh scattering velocimetry using a virtually imaged phased array

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    Type
    Article
    Authors
    Krishna, Yedhu
    Luo, Xinguang
    Magnotti, Gaetano cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering
    Physical Science and Engineering (PSE) Division
    Mechanical Engineering Program
    KAUST Grant Number
    BAS/1/1388-01-01
    Date
    2021-10-15
    Online Publication Date
    2021-10-15
    Print Publication Date
    2021-10-15
    Embargo End Date
    2022-10-15
    Submitted Date
    2021-09-02
    Permanent link to this record
    http://hdl.handle.net/10754/672972
    
    Metadata
    Show full item record
    Abstract
    One-dimensional interferometric Rayleigh scattering velocimetry is demonstrated using a virtually imaged phased array (VIPA). A continuous-wave laser emitting at 532 nm is used as the source, and a low-noise CCD camera is used as the detector. The VIPA has a free spectral range of 15 GHz and is coated for the wavelength range 500–600 nm. Velocity measurements at different flow rates show an accuracy of 10 m/s. Demonstration of high-speed flow velocity measurement is conducted in a jet of air through a contoured converging nozzle. Factors considered for the optimization of the system are discussed along with possibilities of extending the strategy to other measurement techniques.
    Citation
    Krishna, Y., Luo, X., & Magnotti, G. (2021). One-dimensional interferometric Rayleigh scattering velocimetry using a virtually imaged phased array. Optics Letters, 46(20), 5252. doi:10.1364/ol.441913
    Sponsors
    King Abdullah University of Science and Technology (BAS/1/1388-01-01).
    Publisher
    The Optical Society
    Journal
    Optics Letters
    DOI
    10.1364/OL.441913
    Additional Links
    https://www.osapublishing.org/abstract.cfm?URI=ol-46-20-5252
    ae974a485f413a2113503eed53cd6c53
    10.1364/OL.441913
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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