Beam Splitter Patterns
A red filter smaller than the illumination beam allows peripheral unfiltered light to reach a beam splitter, generating a yellow edge halo. The outgoing polarized beam produces sharp geometric images of the filter mount, replicated across the splitter faces due to internal reflections and optical beam division.
—Image by José Armando Escamilla, under the supervision of advisor Ana Karen Reyes in the optics laboratory led by Noel Ivan Toto Arellano, Universidad Politecnica de Tulancingo, Mexico
