Molecular oxygen detection in low pressure flames using cavity ring-down spectroscopy

A. Goldman, I. Rahinov, S. Cheskis

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Cavity ring down spectroscopy is used for measurement of the concentration profiles of oxygen in the low pressure (30 Torr) methane/nitrogen/oxygen flames. Three different equivalence ratios are used: 0.8, 1.0 and 1.17. Molecular oxygen concentration is monitored via rotational spectrum of b1g + ← X3g - (v′ =0-v″ =0) transition, also known as atmospheric A band, located near 750 nm. The P(15)P(15) line is used for concentration measurements. The sensitivity reached is 2.2×10-8 cm-1. The concentration profiles are in a good agreement with the ones calculated using GRI-3.0 mechanism.

Original languageEnglish
Pages (from-to)659-663
Number of pages5
JournalApplied Physics B: Lasers and Optics
Issue number4
StatePublished - 1 Mar 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • General Physics and Astronomy


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