Raman Scattering from Excited States with Picosecond Lifetimes

  • M. Asano
  • J. A. Koningstein
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 14)


If σ(λ) is the absorption cross section of an excited* ← ground state transition and σ*(λ) that of an higher excited ← excited state* transition, both at λlaser, then the latter becomes observable if:
$$ \frac{{\sigma \left( {{\text{ }}\lambda } \right)}} {{\sigma \left( \lambda \right) + \sigma *\left( \lambda \right)}}N_p^{SN} = N\frac{1} {{\tau *}} $$
where N p SN is the number of photons/sec required to saturate the excited state* with a lifetime τ* and N is the number of absorbing species in the trace of the laser beam.


Acetone Chlorophyll Chromium Pyridine Bipyridine 


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  1. 1.
    D. Nicollin and J.A. Koningstein, Chem. Phys.42, 277 (1979).CrossRefGoogle Scholar
  2. 2.
    M. Lutz, J. Raman, Spectrosc. 2, 497 (1974).ADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1980

Authors and Affiliations

  • M. Asano
    • 1
  • J. A. Koningstein
    • 1
  1. 1.Metal Ions Group, Department of ChemistryCarleton UniversityOttawaCanada

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