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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1990),
  • paper QTHP2

Wave packet theory of dynamic absorption spectra in femtosecond pump-probe studies

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Abstract

The large spectral width of ultrashort optical pulses makes possible pump-probe absorption experiments which measure the complete time-resolved spectrum with high resolution in both frequency and time. To provide a quantitative analysis of these experiments, we have formulated the perturbative density matrix theory for the third-order susceptibility of a multilevel system in terms of four-time correlation functions which can be interpreted as the time-dependent overlap of bra and ket vibrational wave packets propagating independently on the ground and excited state electronic potential surfaces.1

© 1990 Optical Society of America

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