Faraday rotation in calcite

Ramaseshan, S. ; Sivaramakrishnan, V. (1956) Faraday rotation in calcite Proceedings of the Indian Academy of Sciences, Section A, 44 (4). pp. 201-205. ISSN 0370-0089

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Official URL: http://www.ias.ac.in/j_archive/proca/44/4/201-205/...

Related URL: http://dx.doi.org/10.1007/BF03046044


The Faraday rotation has been measured in calcite parallel to the optic axis for the wavelengths λ 5893, λ 5780, λ 5461, λ 4358 and λ 4047 Å. A dispersion formula for the magnetic rotation has been fitted up using the same absorption frequencies that are used in refractive dispersion. It is shown that the magneto-optic anomaly factors for the various absorption frequencies are different and the value of the anomaly factor for the absorption wavelength λ 1535, is very much lower than that for the other absorption wavelengths. (γ1535 = 0·20, γ1000 = γ500 = 0·825.) This paper also reports the values of the Verdet constant of NaClO3 for a few wavelengths from λ 5780 to λ 3650 Å. A numerical error in the earlier measurements has been noticed and rectified here. In this case also a dispersion formula for magnetic rotation has been proposed and it is found that for this crystal γ1850 = 0·46 while γ900 = 0·74.

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Deposited On:17 Apr 2011 14:27
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