Magneto-optic effects in doped InP

We report on the investigation of Faraday rotation (FR) of indium phosphide (InP) conducted for several different wavelengths at room temperature. Appreciable FR, yielding Verdet constant values at 980, 1064, 1320, and 1550 nm at room temperature, has been observed. We have also investigated the role for dopants in FR for this class of materials. Specifically we have investigated an n-type dopant (Sulfur) and p-type dopants (Cd and Fe). We also present a simple and consistent model that explains the results for sulfur and points to the need for a more systematic study of these materials.