Article | REF: R6470 V2

Optical activity: optical dichroism

Author: Jean-Claude MAURIZOT

Publication date: December 10, 2009

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2. Polarized light

2.1 Polarized light in a plane

Light is said to be "plane polarized" (figure 3 ) when the electric field associated with it travels in the same plane. Of course, the magnetic field remains in a plane perpendicular to the previous one. The term "rectilinear polarization" is sometimes used.

Unpolarized light, such as so-called "natural" light, is made up of lights randomly polarized in all directions (figure 4 ); each successive wave moves in a different plane.

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Polarized light