Electronic-oscillator analysis of femtosecond four-wave mixing in conjugated polyenes

T. Meier, S. Tretiak, V. Chernyak, S. Mukamel

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Equations of motion which describe the nonlinear optical response of conjugated polyenes using a collective electronic-oscillator representation are derived. Specific signatures of electronic correlations which enter as anharmonicities and scattering between oscillators are predicted in ultrafast resonant four-wave mixing. Only few resonant oscillators need to be considered explicitly; effects of the remaining (off-resonant) oscillators are introduced via renormalized anharmonic coupling coefficients. The connection with inorganic semiconductors is established.

Original languageEnglish
Pages (from-to)4960-4977
Number of pages18
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
Publication statusPublished - 1997
Externally publishedYes


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