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

Yedhu Krishna; Xinguang Luo; Gaetano Magnotti

doi:10.1364/OL.441913

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

Yedhu Krishna, Xinguang Luo, Gaetano Magnotti

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

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.

Original language	English (US)
Pages (from-to)	5252-5255
Number of pages	4
Journal	Optics Letters
Volume	46
Issue number	20
DOIs	https://doi.org/10.1364/OL.441913
State	Published - Oct 15 2021

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.441913

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title = "One-dimensional interferometric Rayleigh scattering velocimetry using a virtually imaged phased array",

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.",

author = "Yedhu Krishna and Xinguang Luo and Gaetano Magnotti",

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AU - Krishna, Yedhu

AU - Luo, Xinguang

AU - Magnotti, Gaetano

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Y1 - 2021/10/15

N2 - 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.

AB - 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.

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JO - Optics Letters

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

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