- Author
- Tjossem, P. J. H. | Smyth, K. C.
- Title
- Multiphoton Excitation Spectroscopy of the B1 Sigma and C1 Sigma Rydberg States of CO.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
- Journal of Chemical Physics, Vol. 91, No. 4, 2041-2048, August 15, 1989
- Keywords
- spectroscopy | spectra
- Identifiers
- polarization measurements; ionization measurements; intensity dependence
- Abstract
- Two-photon absorption spectra of the CO [equation] transitions have been observed in a room temperature cell and in atmospheric pressure hydrocarbon flame using fluorescence [equation] and ionization detection. The ratio of the transition strengths for the [equation] branch head is found to exceed 200:1 for excitation with two identical linearly polarized photons compared with two circularly polarized photons.