extraordinary ray

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Related to extraordinary rays: linear birefringence

extraordinary ray

n
(General Physics) optics the plane-polarized ray of light that does not obey the laws of refraction in a doubly refracting crystal. Compare double refraction, ordinary ray
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References in periodicals archive ?
Each set of shadow edges corresponded to the ordinary and extraordinary rays, but interestingly they were not equally spaced, although the birefringence was constant for all four sets.
Glan-Taylor and Glan-Laser calcite polarizing beam-splitters separate S-polarized light (extraordinary rays) from P-polarized light (ordinary rays) over wavelengths from 400 to 1700 nm, which makes them an excellent choice for visible and near-IR applications.

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