Calibration-free optical emission spectroscopy method for the measurements of gas temperature and OH density

Yanjun Du, Peter J. Bruggeman, Yanjun Ding, Zhimin Peng

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

Abstract

The diagnostic of absolute densities of reactive species and gas temperature is of growing interest for many applications. In this paper, we proposed a simple method to determine OH densities and rotational temperatures based on the molecular self-absorption. A 10 cm diffuse atmospheric pressure RF glow discharge is used to verify the proposed method. Good agreements with broadband absorption are achieved with a two-temperature Boltzmann distribution description of the excited state.

Original languageEnglish (US)
Title of host publicationApplied Industrial Optics
Subtitle of host publicationSpectroscopy, Imaging and Metrology, AIO 2017
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557528209
StatePublished - 2017
EventApplied Industrial Optics: Spectroscopy, Imaging and Metrology, AIO 2017 - San Francisco, United States
Duration: Jun 26 2017Jun 29 2017

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceApplied Industrial Optics: Spectroscopy, Imaging and Metrology, AIO 2017
Country/TerritoryUnited States
CitySan Francisco
Period6/26/176/29/17

Bibliographical note

Publisher Copyright:
© 2017 Optical Society of America.

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