Fresnel rhomb

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A Fresnel rhomb is a wave plate designed by Augustin-Jean Fresnel for producing circularly polarized light. A Fresnel rhomb creates a phase difference between light polarized along two perpendicular axes, resulting in polarization that circles in time. It attempts to place these two polarizations of light exactly 180 degrees (pi radians) out of phase.

[edit] See Also

Fresnel equations
Fresnel zone
Fresnel lens

[edit] External link and reference

http://physics.kenyon.edu/EarlyApparatus/Polarized_Light/Fresnels_Rhomb/Fresnels_Rhomb.html

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