Intracavtty Laser Spectroscopy of flames. Detection of oxygen atoms

S. Cheskis, S. A. Kovalenko

Research output: Contribution to journalConference articlepeer-review


The absolute concentration of atomic oxygen in atmospheric pressure hydrogen/air flame has been measured using Intracavity Laser Spectroscopy based on a dye laser pumped by an argon-ion laser. Absorptions at the highly forbidden transitions at 630.030 and 636.380 nm were observed at an equivalent optical length of up to 10 km. The relatively low intensity of the dye laser avoids photochemical interferences that are inherent to some other methods for detecting atomic oxygen. Detection sensitivity is about 67times;1014 atom/cm3 and can be improved with better flame and laser stabilization.

Original languageEnglish
Pages (from-to)145-151
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 17 Jun 1994
EventLaser Techniques for State-Selected and State-to-State Chemistry II 1994 - Los Angeles, United States
Duration: 23 Jan 199429 Jan 1994


Dive into the research topics of 'Intracavtty Laser Spectroscopy of flames. Detection of oxygen atoms'. Together they form a unique fingerprint.

Cite this