Combustion Chemistry of Vibrationally Excited Oxygen.
Abstract
We are investigating the use of stimulated resonance Raman pumping to prepare oxygen in selected vibrational states of the ground electronic manifold. This necessitates the development of a laser source capable of producing radiation in the region of the Schumann-Runge transition of O2 near 200 nm. We have generated this radiation utilizing a quadrupled YAG laser shifted in a high pressure H2 Raman cell. This laser output was made tunable by employing an intracavity etalon in the YAG laser oscillator. Utilizing this source we have produced photoacoustic spectra in the Schumann-Runge band and have observed resonance fluorescence to excited vibrational states of the electronic ground state. We are currently undertaking a series of spectral measurements to determine the relative strengths of predissociation, fluorescence and resonant Raman as a function of the wavelength of the exciting laser. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA143791
Entities
People
- H. Rabitz
- J. Gelfand
- Richard B. Miles
Organizations
- Princeton University