One-dimensional interferometric Rayleigh scattering velocimetry using a virtually imaged phased array
Type
ArticleKAUST Department
Clean Combustion Research CenterMechanical Engineering
Physical Science and Engineering (PSE) Division
Mechanical Engineering Program
KAUST Grant Number
BAS/1/1388-01-01Date
2021-10-15Online Publication Date
2021-10-15Print Publication Date
2021-10-15Embargo End Date
2022-10-15Submitted Date
2021-09-02Permanent link to this record
http://hdl.handle.net/10754/672972
Metadata
Show full item recordAbstract
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.441913Sponsors
King Abdullah University of Science and Technology (BAS/1/1388-01-01).Publisher
The Optical SocietyJournal
Optics LettersAdditional Links
https://www.osapublishing.org/abstract.cfm?URI=ol-46-20-5252ae974a485f413a2113503eed53cd6c53
10.1364/OL.441913