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Femtosecond interferometry and photon echo - Steady state and transient processes in spectroscopy

Patricia Segonds, Lionel Canioni, S. Le Boiteux, M. Joffre, Bruno Bousquet, W. Li, L. Sarger

Published Jan 1, 1996• 0 citations
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Femtosecond photon-echo experiments on sodium resorufin in dimethylsulfoxide at room temperature show that optical dephasing in solution is of non-Markovian character. A single Gauss-Markov stochastic modulation process is used to interpret both the femtosecond light-scattering results and the steady-state absorption spectrum. The optical dynamics of this system appears to fall in the intermediate modulation regime. No evidence was found for contributions of slower dynamical processes to the absorption line breadth.