Bubble optics
arXiv:1909.04401 · doi:10.1364/AO.59.000045
Abstract
Starting from a peculiar image observed below a bubble floating at a water-air interface, the article analyzes several optical properties of these special types of refracting objects (coined \textit{bubble axicons}). Using mainly geometrical optics, their relation to common axicons, the shadow sausage effect and elementary optical catastrophes (caustics) are discussed.
16 pages, 16 Figures