Double refraction

{
  "id": "MLC-T-OAG-001147",
  "term": "Double refraction",
  "field": "Oil and gas",
  "definition": "The splitting of a single incident light ray into two distinct rays as it passes through an anisotropic material, each traveling at a different velocity and having different polarization. This phenomenon, also known as birefringence, is observed in certain minerals and can be used to identify them under a polarizing microscope. In seismic exploration, analogous effects occur with shear waves in anisotropic media.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/double-refraction/"
}