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Main Title Coherent Anti-Stokes Raman Spectroscopy of Polycyclic Aromatic Hydrocarbons.
Author Van Hare, D. R. ; Carreira, L. A. ; Rogers, L. B. ; Azarraga, L. ;
CORP Author Georgia Univ., Athens. Dept. of Chemistry.;Environmental Research Lab., Athens, GA.
Year Published 1984
Report Number EPA-R-809989; EPA/600/J-84/243;
Stock Number PB85-177830
Additional Subjects Aromatic polycyclic hydrocarbons ; Raman spectra ; Chemical analysis ; Environmental surveys ; Comparison ; Line width ; Reprints ; Coherent anti-Stokes Raman spectroscopy
Library Call Number Additional Info Location Last
NTIS  PB85-177830 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Coherent anti-Stokes Raman spectroscopy (CARS) was used to obtain Raman spectra of thirteen polycyclic aromatic hydrocarbons (PAHs) composed of between three and seven fused rings. The compounds were pumped in the resonance and preresonance regions to obtain the sensitivity necessary for examination at concentrations down to .000015 M. A simple mixture of three PAHs was optically separated through the wavelength selectivity of the resonant enhancement process. Comparisons between the spectra of the mixture and the spectrum of each pure component showed essentially no differences when pumped at the same wavelength. Finally, lineshape analysis was performed on the CARS spectra to facilitate comparisons between classes of compounds and for quantitative purposes. (Copyright (c) 1984 Society for Applied Spectroscopy.)