A direct nonperturbative measurement of the spatial distribution of the light intensity in a strongly scattering medium is performed using an optoacoustic method. It is shown that near a surface the intensity can be five times greater than the incident intensity, and the absolute maximum of the intensity is observed at a depth ℓ(1– R )(1–4.0 R ) determined by the photon transport mean free path ℓ and the effective light reflection coefficient R of the boundary separating the scattering and external media.
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Карабутов et al. (1999) studied this question.
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