One-dimensional interferometric Rayleigh scattering velocimetry using a virtually imaged phased array
KAUST DepartmentClean Combustion Research Center
Physical Science and Engineering (PSE) Division
Mechanical Engineering Program
KAUST Grant NumberBAS/1/1388-01-01
Online Publication Date2021-10-15
Print Publication Date2021-10-15
Embargo End Date2022-10-15
Permanent link to this recordhttp://hdl.handle.net/10754/672972
MetadataShow full item record
AbstractOne-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.
CitationKrishna, 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
SponsorsKing Abdullah University of Science and Technology (BAS/1/1388-01-01).
PublisherThe Optical Society