(in double refraction) the light ray that does not obey the ordinary laws of refraction.
Compare with ordinary ray
Example sentencesExamples
- Thus, a straightforward new technique is demonstrated for determining the extraordinary-ray absorption coefficient.
- The crystals are also idealized by assuming that no incident photon is absorbed, but each emerges in either the ordinary or the extraordinary ray.
- He cited as an example Huygens's hypothesis that the extraordinary ray in doubly-refracting Iceland spar is propagated elliptically.
- We present the behavior of the critical angle for the extraordinary ray as a function of the crystal axis position with respect to the normal to the refracting surface.