Abstract

We have revealed a large Faraday rotation in tin thiohypodiphosphate (${\mathrm{Sn}}_2{\mathrm{P}}_2{\mathrm{S}}_6$) crystals, which makes this material promising for magneto-optics. The effective Faraday tensor component and the Verdet constant for the direction of the optic axis have been determined by measuring the pure Faraday rotation in ${\mathrm{Sn}}_2{\mathrm{P}}_2{\mathrm{S}}_6$ crystals with both the single-ray and small-angular polarimetric methods at the normal conditions and a wavelength of $632.8\mathrm{nm}$. The effective Verdet constant is found to be equal to $115\mathrm{rad}/\mathrm{T}\times \mathrm{m}$.

© 2008 Optical Society of America

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