TY - JOUR
T1 - Femtosecond spectroscopy of heterogeneous electron transfer
T2 - Extraction of excited-state population dynamics from pump-probe signals
AU - Ramakrishna, S.
AU - Willig, F.
AU - May, V.
AU - Knorr, A.
PY - 2003/1/16
Y1 - 2003/1/16
N2 - Numerical calculations of pump-probe signals corresponding to excited-state absorption of the molecular state are presented. The molecular excited-state decays due to ultrafast electron injection into a continuum of electronic states (semiconductor levels) and the model calculations take into account the consequent molecular reorganization. A time-dependent Schrödinger wave equation approach is utilized to model the pump-probe dynamics. The continuum of semiconductor states, namely, its conduction-band levels, is described by an expansion in terms of orthogonal polynomials. It is shown that excited-state dynamics, including information on the modulation of population transfer due to vibrational coherences, can be unambiguously deduced from the pump-probe signals.
AB - Numerical calculations of pump-probe signals corresponding to excited-state absorption of the molecular state are presented. The molecular excited-state decays due to ultrafast electron injection into a continuum of electronic states (semiconductor levels) and the model calculations take into account the consequent molecular reorganization. A time-dependent Schrödinger wave equation approach is utilized to model the pump-probe dynamics. The continuum of semiconductor states, namely, its conduction-band levels, is described by an expansion in terms of orthogonal polynomials. It is shown that excited-state dynamics, including information on the modulation of population transfer due to vibrational coherences, can be unambiguously deduced from the pump-probe signals.
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U2 - 10.1021/jp027104b
DO - 10.1021/jp027104b
M3 - Article
AN - SCOPUS:0037448483
SN - 1520-6106
VL - 107
SP - 607
EP - 611
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
IS - 2
ER -