Splitting a ray into two parallel rays polarized perpendicularly

WordNet Word definitions in WordNet
n. splitting a ray into two parallel rays polarized perpendicularly [syn: double refraction ]

Wiktionary Word definitions in Wiktionary
n. (context physics English) the splitting of a ray of light into two parallel rays of perpendicular polarization by passage through an optically anisotropic medium

Wikipedia Word definitions in Wikipedia
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light . These optically anisotropic materials are said to be birefringent (or birefractive ). The birefringence is ...