Verdet's Constant

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Verdet’s Constant


(named after the French mathematician M. Verdet; 1824-66), a quantity that characterizes the magnetic rotation of the plane of polarization in a substance. A substance placed in a magnetic field turns the plane of polarization of light, which is diffused in the direction of the field at the angle θ = VIH (Verdet’s law), where / is the length of the beam’s path in m (or cm), H is the strength of the magnetic field in amperes (A) per m (or oersteds), and V is Verdet’s constant—the specific magnetic rotation—in radians per A (or radians per oersted cm).


Vol’kenshtein, M. V. Molekuliarnaia optika. Moscow-Leningrad, 1951. Chapter 10.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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