Coupled cars-efishg: Progressing towards electric field measurements in gas mixtures and elevated temperatures

Jonathan E. Retter, Gregory S. Elliott

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

Abstract

Electric field induced second harmonic generation (EFISHG) is a simple yet powerful optical tool to measure electric field components in plasma systems. However, the signal is a function of the gas temperature, measurement length of the system, and the average polarizability of the gas at the measurement volume, stressing the need to know these properties in order to effectively make quantitative measurements of the electric field. In more dynamic environments with changing properties, it is desirable to measure the species and gas temperature at the same time as the EFISHG measurement. In this work we describe a coupled CARS-EFISHG instrument to allow us to measure the temperature and major species in order to make corrections to the measured EFISHG signal.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
StatePublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: Jan 7 2019Jan 11 2019

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego
Period1/7/191/11/19

ASJC Scopus subject areas

  • Aerospace Engineering

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