A model study of filtered rayleigh scattering sensitivity to pressure and temperature

David Feng, Benjamin M. Goldberg, Maya Naphade, Mikhail N. Shneider, Richard B. Miles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


Filtered Rayleigh scattering (FRS) is studied in the context of understanding temperature and pressure sensitivity. A computational model case of the Gaussian scattering lineshape (low y-parameter) and the iodine absorption spectrum (laser wavelength of about 532.26 nm) is presented. Temperature and pressure sensitivities are modelled with respect to experimental parameters (e.g. cell vapor pressure, laser frequency, observation angle) as well as varying temperature and pressure. The model shows that for temperatures of 300, 500, and 1000 K with fluctuation ΔT = ±100 K, the FRS signal only varies by about 2%, 4%, and 5%, respectively. Temperature insensitivity is discussed and experimentally demonstrated with good agreement between 295-420 K by changing the observation angle. A modelled comparison between a Gaussian filter and a notch filter is also presented to understand the validity of a fully analytical FRS model.

Original languageEnglish (US)
Title of host publicationAIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105241
StatePublished - 2018
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: Jan 8 2018Jan 12 2018

Publication series

NameAIAA Aerospace Sciences Meeting, 2018


OtherAIAA Aerospace Sciences Meeting, 2018
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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