Ultrafast solvent dynamics: Connection between time resolved fluorescence and optical Kerr measurements

Minhaeng Cho; Sandra J. Rosenthal; Norbert F. Scherer; Lawrence D. Ziegler; Graham R. Fleming

doi:10.1063/1.462746

Ultrafast solvent dynamics: Connection between time resolved fluorescence and optical Kerr measurements

Minhaeng Cho, Sandra J. Rosenthal, Norbert F. Scherer, Lawrence D. Ziegler, Graham R. Fleming

Research output: Contribution to journal › Article › peer-review

202 Citations (Scopus)

Abstract

The vibrational characteristics of liquid dynamics are used to describe the ultrafast relaxations observed in time-dependent fluorescence Stokes shift [J. Chem. Phys. 95, 4715 (1991)] and heterodyne detected optical Kerr effect measurements on acetonitrile, via a Brownian oscillator model. Introducing a frequency distribution of vibrational modes makes it possible to compare the two experiments. The ultrafast decays observed in the fluorescence Stokes shift and optical Kerr signals are produced by destructive superposition of the high frequency, underdamped modes.

Original language	English
Pages (from-to)	5033-5038
Number of pages	6
Journal	The Journal of chemical physics
Volume	96
Issue number	7
DOIs	https://doi.org/10.1063/1.462746
Publication status	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "The vibrational characteristics of liquid dynamics are used to describe the ultrafast relaxations observed in time-dependent fluorescence Stokes shift [J. Chem. Phys. 95, 4715 (1991)] and heterodyne detected optical Kerr effect measurements on acetonitrile, via a Brownian oscillator model. Introducing a frequency distribution of vibrational modes makes it possible to compare the two experiments. The ultrafast decays observed in the fluorescence Stokes shift and optical Kerr signals are produced by destructive superposition of the high frequency, underdamped modes.",

author = "Minhaeng Cho and Rosenthal, {Sandra J.} and Scherer, {Norbert F.} and Ziegler, {Lawrence D.} and Fleming, {Graham R.}",

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AU - Ziegler, Lawrence D.

AU - Fleming, Graham R.

PY - 1992

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AB - The vibrational characteristics of liquid dynamics are used to describe the ultrafast relaxations observed in time-dependent fluorescence Stokes shift [J. Chem. Phys. 95, 4715 (1991)] and heterodyne detected optical Kerr effect measurements on acetonitrile, via a Brownian oscillator model. Introducing a frequency distribution of vibrational modes makes it possible to compare the two experiments. The ultrafast decays observed in the fluorescence Stokes shift and optical Kerr signals are produced by destructive superposition of the high frequency, underdamped modes.

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Ultrafast solvent dynamics: Connection between time resolved fluorescence and optical Kerr measurements

Abstract

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