Remote-sensing gas measurements with coherent Rayleigh-Brillouin scattering

We measure the coherent Rayleigh-Brillouin scattering (CRBS) signal integral as a function of the recorded gas pressure in He, Co2, SF6, and air, and we confirm the already established quadratic dependence of the signal on the gas density. We propose the use of CRBS as an effective diagnostic for th...

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Bibliographic Details
Published in:Applied physics letters 2016-07, Vol.109 (3)
Main Authors: Gerakis, A., Shneider, M. N., Stratton, B. C.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Applied physics
Coherent scattering
Dependence
Diagnostic systems
Gas density
Gas pressure
Gases
Remote sensing
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Summary:We measure the coherent Rayleigh-Brillouin scattering (CRBS) signal integral as a function of the recorded gas pressure in He, Co2, SF6, and air, and we confirm the already established quadratic dependence of the signal on the gas density. We propose the use of CRBS as an effective diagnostic for the remote measurement of gas' density (pressure) and temperature, as well as polarizability, for gases of known composition.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4959778