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Proceedings Paper

Analysis and design of imaging Fabry-Perot interferometers for measurement of Rayleigh-Brillouin scattering spectra in gas flows
Author(s): Tao Li; Gao-ping Li; Lei Wu; Liang Yuan; Bing Yu; Xue-xin Wang; Hong-ru Yang; Li-peng Wu; Le Wang; Dong-yu Yu; Wan-hong Yin
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Paper Abstract

Laser Rayleigh-Brillouin scattering is a powerful diagnostic tool for the study of gas flow properties. It provides an effective method for non-intrusive measurement of density, temperature and velocity in the gas flow. The received scattered laser light power is proportional to the gas density, the linewidth of the Rayleigh-Brillouin scattering spectrum is related to the gas temperature, and the Doppler frequency shift of the peak of the Rayleigh-Brillouin scattering spectrum is related to the gas velocity. The Rayleigh-Brillouin scattering spectrum can be measured by a Fabry-Perot interferometer operated in the imaging mode where an intensified CCD camera is frequently used to record the interference patterns of the Fabry-Perot interferometer. The Rayleigh-Brillouin scattering spectrum is then reconstructed from the measured data deconvolved with the Fabry-Perot instrument function. In this paper, the analysis and design of an imaging Fabry-Perot interferometer for the measurement of the Rayleigh-Brillouin scattering spectrum in the gas flow is presented. Some factors that limit the performance of the imaging Fabry-Perot interferometer are analyzed and discussed.

Paper Details

Date Published: 30 August 2013
PDF: 8 pages
Proc. SPIE 8910, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Spectrometer Technologies and Applications, 89101E (30 August 2013); doi: 10.1117/12.2034394
Show Author Affiliations
Tao Li, Xi'an Institute of Applied Optics (China)
Gao-ping Li, Xi'an Institute of Applied Optics (China)
Lei Wu, Xi'an Institute of Applied Optics (China)
Liang Yuan, Xi'an Institute of Applied Optics (China)
Bing Yu, Xi'an Institute of Applied Optics (China)
Xue-xin Wang, Xi'an Institute of Applied Optics (China)
Hong-ru Yang, Xi'an Institute of Applied Optics (China)
Li-peng Wu, Xi'an Institute of Applied Optics (China)
Le Wang, Xi'an Institute of Applied Optics (China)
Dong-yu Yu, Xi'an Institute of Applied Optics (China)
Wan-hong Yin, Xi'an Institute of Applied Optics (China)


Published in SPIE Proceedings Vol. 8910:
International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Spectrometer Technologies and Applications
Lifu Zhang; Jianfeng Yang, Editor(s)

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