Kubo's Line Shape Function for a Linear-Quadratic Chromophore-Solvent Coupling

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2 Scopus citations


An exact, closed-form solution is obtained for the line shape function of an optical transition with the transition frequency depending linearly plus quadratically on a Gaussian coordinate of the thermal bath. The dynamical modulation of the line shape involves two parameters corresponding to the linear and quadratic components of the transition frequency. The increase of the second component results in a non-Gaussian line shape that splits into two Lorenzian lines in the limit of fast modulation. (Figure Presented).

Original languageEnglish (US)
Pages (from-to)9006-9008
Number of pages3
JournalJournal of Physical Chemistry B
Issue number29
StatePublished - Jul 23 2015

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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