Verifying Faraday’s Magneto-optical Effect for Some Materials
European Journal of Biophysics
Volume 7, Issue 1, June 2019, Pages: 8-14
Received: Jun. 8, 2019;
Accepted: Jul. 9, 2019;
Published: Jul. 18, 2019
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Pooja Daggar, Department of Physics, Sant Longowal Institute of Engineering and Technology, Sangrur, India
Suram Singh Verma, Department of Physics, Sant Longowal Institute of Engineering and Technology, Sangrur, India
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Magneto-optic effect is a phenomenon in which an electromagnetic wave propagates through a medium and gets affected by the presence of a quasistatic magnetic field. Verdet constant describes the strength of Faraday Effect for a particular material. The objective of this work was to measure the Verdet constant for different transparent materials. The Verdet constant is measured by using the Faraday Effect which is a magneto-optical phenomenon; mean it describes the rotation of the plane of polarization of light with in a medium when it is placed in an external magnetic field. So this experiment determines the rotation of the plane of polarization with respect to the wavelength and the magnetic field. The experiment was carried out with different materials like flint glass, potassium iodide, potassium bromide, olive oil, glycerin, normal water and salty water. Reading observed through this experiment depicts a linear relationship between the angle of rotation and the magnetic field. The Verdet constant is determined to be at constant laser wavelength λ = 632.8nm. This effect was demonstrated in olive oil and water and value of Verdet constant be V=16.18 radian/T-m and 24.68 radian/T-m respectively and also show optical activity for glycerin. However, no change was noticed for black glass and salty water.
Magneto-optical Effect, Polarization, Magnetic Field, Verdet Constant
To cite this article
Suram Singh Verma,
Verifying Faraday’s Magneto-optical Effect for Some Materials, European Journal of Biophysics.
Vol. 7, No. 1,
2019, pp. 8-14.
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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Kales M. L., Modes in wave Guides containing Ferrites, Journal of Applied physics 24 (5) (2008) 604.
Larry W., Charles H., (ed), The ARRL handbook for radio Amateurs sixty eighth edition, America radio relay league (1990).
Stefaan G, Vandendriessche, Faraday rotation in Mesogenic organic molecules. Chemistry of materials (2013) 1139.
Shakir A. A, Mudhafa-AL. R. D., Dergazly-AL. A. A., Verdet constant measure -ement of olive oil for magnetic field sensor, International Journal of Advances in Electrical and Electronics Engineering (2004) 2319.
Ehsan T., mohammad T., Verdet constant measurement of nanocrystal and thin film of cadmium maganease telluride, Optik (2015) 3919.
Thomas G. S., Verdet constant of light flint glass, Physics Department, The college of Weester (2003).
Stites R. W., O’Hara K. M, The Verdet constant of undoped Y3Al5O12 in the near infrared, Optics Communication 285 (2013) 3997.
Toporov A. Y. U., Nikitin P. I. M. V. V., Beloglazow A. A., Perrone A. A. L., Faraday effect in thin amorphous magnetic films, Sensors and Actuators A, 59 (1997) 326.
Willet C. S., An Intoduction to Gas Lasers, Pergamon Press, (1974) 411.
White A. D., Rigden J. D., Continuous Gas Laser operation in the visible, Proc IRE vol. 50 (1962) 1697.
Gasvik K. J., Optical Metrology (3rd ed.). John wiley and Sons. ISBN 0470846704 (2003) 219.
Draper J. W., A textbook on chemistry. NY: Harper and Brothers (1861) 78.
Indosaw apparatus (http://universeits-pilani.ac.in/uploads/manjuladevi/magnetoptic Effect.pdf).
Belapura J. S., Faraday rotation effect, M.Sc.-I Report, University of Pune, India (2007).
Haider T., A Review of Magneto-Optic Effects and Its Application, International Journal of Electromagnetics and Applications 7 (1) (2017) 17.