Paper Titles in Periodical
International Letters of Chemistry, Physics and Astronomy
Volume 47


Subscribe to our Newsletter and get informed about new publication regulary and special discounts for subscribers!

ILCPA > Volume 47 > Estimation of Verdet Constant for KCl, KBr, MgCl2...
< Back to Volume

Estimation of Verdet Constant for KCl, KBr, MgCl2 Using Faraday Rotator

Full Text PDF


Nowadays, the rapid development of optics technology, especially for laser technology and scientific fields is important. One of this optics theory is Faraday rotation. Way of light propagation in a material medium can be influenced by an external field. The applied magnetic field causes rotation of the plane of polarized light. This effect is due to the optical activity, a property of the material that causes the rotation of the electric field of an incident linear wave. In this paper, we present an experiment to measure the Verdet constant through Faraday Effect using the Faraday rotator. Verdet constant is a factor for relation of magnetic field and the length of the path. When this effect is used in spectrographic studies, we can find information on the properties of higher energy states. Used materials for this experiment are KCl, KBr, and MgCl2. We used three lasers with different wavelengths 405nm, 450nm, and 515nm. We shows that the linear polarized light rotates after passing the applied magnetic field, when it's parallel with the magnetic field vector. Verdet constant are calculated about 382, 429.125, and 311.625 in 450nm for KCl, KBr, MgCl2 solutions.


International Letters of Chemistry, Physics and Astronomy (Volume 47)
O. Alavi and A. Najafizadeh, "Estimation of Verdet Constant for KCl, KBr, MgCl2 Using Faraday Rotator", International Letters of Chemistry, Physics and Astronomy, Vol. 47, pp. 208-219, 2015
Online since:
Feb 2015

Optics and Laser Physics Laboratory Linear Polarization of Light, Miami University, (2014).

Physics Experiment, University of Michigan, 341(4), 2010, 1-18.

Physics 231 Polarization, Rice University, 2014, pp.1-10.

Polarization and Polarization Control, NEW FOCUS Inc., (1993).

R. M. Besancon, Encyclopedia of Physics, Van Nostrand, New York, (1958).

J. E Thompson, L. H. Luessen, Fast Electrical and Optical Measurements, Springer Science & Business Media, 1, (1986).

F.L. Pedrotti and P. Bandettini, Faraday rotation in the undergraduate advanced laboratory, Am. J. Phys. 58, 1990, 542-544. ( Received 07 February 2015; accepted 20 February 2015 ).

Show More Hide