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Anisotropy decays at the peak of the absorption spectrum for λ = 1 (circles), 3 (squares), 5 (triangles), and 7.5 (diamonds). The anisotropy decay of bulk water (hexagons) is shown for comparison. Solid lines are fits to the data. All Nafion samples were fit using biexponential decays. Water was fit using a single exponential decay.
