Estimation of Verdet constant for KCl, KBr, MgCl₂ &enspusing Faraday rotator

• Autorzy: Alavi O. , Najafizadeh A.

Identyfikatory

DOI

10.18052/www.scipress.com/ILCPA.47.208

• Języki publikacji: EN

Abstrakty

EN

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&enspsolutions.

Słowa kluczowe

EN

Faraday Effect; optics; polarized light; Verdet constant

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2015
• Tom: Vol. 47
• Strony: 208--219
• Opis fizyczny: Bibliogr. 7 poz., fot., wykr., wz.

Twórcy

autor

Alavi O.

• Department of Electrical Engineering, K.N. Toosi University of Technology, Iran

autor

Najafizadeh A.

• Department of Electrical Engineering, Iran University of Science and Technology, Iran

Bibliografia

• [1] Optics and Laser Physics Laboratory Linear Polarization of Light, Miami University, 2014.
• [2] Physics Experiment, University of Michigan, 341(4), 2010, 1-18.
• [3] Physics 231 Polarization, Rice University, 2014, pp. 1-10.
• [4] Polarization and Polarization Control, NEW FOCUS Inc., 1993.
• [5] R. M. Besancon, Encyclopedia of Physics, Van Nostrand, New York, 1958.
• [6] J. E Thompson, L. H. Luessen, Fast Electrical and Optical Measurements, Springer Science & Business Media, 1, 1986.
• [7] F.L. Pedrotti and P. Bandettini, Faraday rotation in the undergraduate advanced laboratory, Am. J. Phys. 58, 1990, 542-544.