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Parhelic-like circle from light scattering in Plateau borders

2014; Elsevier BV; Volume: 379; Issue: 6 Linguagem: Inglês

10.1016/j.physleta.2014.12.006

1873-2429

Adriana Pedrosa Biscaia Tufaile, Adriana Pedrosa Biscaia Tufaile,

Computer Graphics and Visualization Techniques

We are reporting a new simple optical element to generate halos. We have observed interesting patterns of light scattering in Plateau borders in foams. In analogy to the atmospheric phenomena known as parhelic circle, sun dogs, and sun pillars, we have named the features of the patterns observed as parlaseric circle, laser dogs, and laser pillars. The triangular symmetry of the Plateau borders is analogous to the hexagonal symmetry of ice crystals which produce these atmospheric phenomena. Working with one Plateau border at a time, we have observed wave optics phenomena that are not perceived in the atmospheric phenomena, such as diffraction and interference.