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Edmund Optics - Manufacturing Services 8/24 LB
Photonics Dictionary

Malus's law

A law that uses the square of the cosine between the plane of polarization of a beam of plane-polarized light and the plane of polarization of a polarizing element to calculate the intensity of the light beam after it passes through that element. Malus's law is the standard procedure used to experimentally determine if a particular polarizing element is actually a linear polarizer.
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