RESEARCH ON NEW TECHNIQUES IN ABSORPTION AND EMISSION SPECTROSCOPY.
Abstract
It has been shown that several mechanisms are involved in the excitation of infrared emission. For compounds which absorb radiation at the laser wavelength, 10.6 microns, direct interaction between the laser beam and the compound appears to be the major source of excitation. Compounds such as methane and benzene, which do not absorb at 10.6 microns, appear to be excited by indirect heating by the bottom of the cell. The behavior of ethane and other C-C containing compounds cannot be explained by either of the above mechanisms. It appears that these compounds are excited by direct interaction with the laser beam without absorption. Emission from PO bands was easily quenched by the presence of O2 or N2. Emission from OH increased in the presence of O2. Complete fragmentation of molecules seemed to take place when the sample was injected into the Rf core. When it was injected into the tail flame fragmentation may be partical. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1968
- Accession Number
- AD0834464
Entities
People
- C. E. Woodward
- D. Truitt
- J. W. Robinson
- Morgan Barnes
Organizations
- Louisiana State University