Computed optical transmission records: An effect of dense-medium phase function as an approximate description of multiple light scattering

The optical properties of glassy slab may quickly evolve during crystallization processes. Especially, the optical transmission (OT) may change as a function of size, number density and refractive index of scattering domains (crystals). In later crystallization phases, the separation length of individual domains may be lowered significantly. This usually results in enhanced multiple scattering effects. Under elevated packing density conditions, the individual crystals can no more be treated as independent scatters. In principle, the scattered signals originated from two neighboring particles may interfere either constructively or destructively, thus implying variable intensity of light beams. As a consequence, the OT may oscillate when crystal sizes increase. Since these optical features completely differ from those known for single scattering approach, we analyze them in detail in this paper.