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Optica Publishing Group
  • The Thirteenth International Conference on Ultrafast Phenomena
  • 2002 OSA Technical Digest Series (Optica Publishing Group, 2002),
  • paper ThB6
  • https://doi.org/10.1364/UP.2002.ThB6

Ultrafast relaxation dynamics of the solvated electron in liquid ammonia

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Abstract

We present what is to our knowledge the first femtosecond pump-probe studies on the solvated electron in liquid ammonia. Ultrafast near-infrared excitation of the electrons can be understood quantitatively in terms of a simple temperature jump which shifts within our time-resolution the electronic resonance by (5300 ± 500) cm−1 into the mid-infrared spectral region. A subsequent blue-shift of the time-dependent absorption spectrum indicates the dynamics of electron cooling and occurs on a time scale of (200 ± 50) fs. Both pump pulse-induced temperature jump and cooling occur under shape stability of the electron resonance.

© 2002 Optical Society of America

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