Quantitative Detection of Single O2 by Cavity-Enhanced Absorption
Abstract
A method for the practical determination of the absolute concentration of single alpha(exp 1) DELTA(sub g) oxygen is discussed. The method is based on sensitive, off-axis integrated-cavity-output spectroscopy (ICOS). Off-axis ICOS allows narrowband, continuous-wave lasers to be used in conjunction with optical cavities to record sensitive absorption measurements. The details of the method as well as spectroscopic data confirming the first observation of the (1,0) band of the beta(exp 1) SIGMA(sub g)(exp +) - alpha(exp 1) DELTA(sub g) Noxon system are presented. The absolute transition probabilities for the beta(exp 1) SIGMA(sub g)(exp +) - alpha(exp 1) DELTA(sub g) Noxon system, which are not known precisely from experiments, are determined by quantum chemistry theory. (3 figures, 19 refs.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 11, 2003
- Accession Number
- ADA425516
Entities
People
- Anthony O’keefe
- Douglas S. Baer
- Manish K. Gupta
- Skip Williams
- Thomas Owano
Organizations
- Air Force Research Laboratory