A novel spectroscopy using ultrafast two-pulse excitation of large polyatomic molecules

A. Seilmeier; W. Kaiser; A. Laubereau; S. F. Fischer

doi:10.1016/0009-2614(78)80282-6

A novel spectroscopy using ultrafast two-pulse excitation of large polyatomic molecules

A. Seilmeier, W. Kaiser, A. Laubereau, S. F. Fischer

Technical University of Munich

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Abstract

A first infrared pulse at frequency ν₁ interacts with vibrational states in S₀ and a second visible pulse at ν₂ promotes the excited molecules to the S₁ state from where they fluoresce. Tuning the frequency ν₂ over 600 cm^-1 allows the observation of a detailed spectrum which gives information on vibrational states in S₀ and on vibronic states in S₁ together with corresponding Franck-Condon factors. The spectra differ drastically from the common broad and featureless absorption and fluorescence bands.

Original language	English
Pages (from-to)	225-229
Number of pages	5
Journal	Chemical Physics Letters
Volume	58
Issue number	2
DOIs	https://doi.org/10.1016/0009-2614(78)80282-6
State	Published - 15 Sep 1978

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title = "A novel spectroscopy using ultrafast two-pulse excitation of large polyatomic molecules",

abstract = "A first infrared pulse at frequency ν1 interacts with vibrational states in S0 and a second visible pulse at ν2 promotes the excited molecules to the S1 state from where they fluoresce. Tuning the frequency ν2 over 600 cm-1 allows the observation of a detailed spectrum which gives information on vibrational states in S0 and on vibronic states in S1 together with corresponding Franck-Condon factors. The spectra differ drastically from the common broad and featureless absorption and fluorescence bands.",

author = "A. Seilmeier and W. Kaiser and A. Laubereau and Fischer, \{S. F.\}",

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AU - Kaiser, W.

AU - Laubereau, A.

AU - Fischer, S. F.

PY - 1978/9/15

Y1 - 1978/9/15

N2 - A first infrared pulse at frequency ν1 interacts with vibrational states in S0 and a second visible pulse at ν2 promotes the excited molecules to the S1 state from where they fluoresce. Tuning the frequency ν2 over 600 cm-1 allows the observation of a detailed spectrum which gives information on vibrational states in S0 and on vibronic states in S1 together with corresponding Franck-Condon factors. The spectra differ drastically from the common broad and featureless absorption and fluorescence bands.

AB - A first infrared pulse at frequency ν1 interacts with vibrational states in S0 and a second visible pulse at ν2 promotes the excited molecules to the S1 state from where they fluoresce. Tuning the frequency ν2 over 600 cm-1 allows the observation of a detailed spectrum which gives information on vibrational states in S0 and on vibronic states in S1 together with corresponding Franck-Condon factors. The spectra differ drastically from the common broad and featureless absorption and fluorescence bands.

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VL - 58

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JO - Chemical Physics Letters

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A novel spectroscopy using ultrafast two-pulse excitation of large polyatomic molecules

Abstract

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