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We predict that local optical fields in disordered nanostructured systems (clusters, composites, and rough surfaces) experience giant fluctuations (chaotic changes similar to turbulence) at an attosecond temporal and nanometer spatial scale. These fluctuations are most pronounced for a femtosecond-pulse excitation. This predicted effect is especially important for ultrafast nonlinear phenomena.
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Mark I. Stockman (2000) studied this question.
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