Abstract

The Faraday photorefractive effect is demonstrated by combining photorefractive two-beam coupling with Faraday rotation in Cd_1–xMn_xTe, a diluted magnetic semiconductor. Two-wave mixing is monitored as a function of incident-beam polarization and magnetic-field strength with the grating vector parallel to a 〈111〉 axis. The photorefractive gain is an oscillatory function of the magnetic field. The magnetic field controls the direction and magnitude of photorefractive energy transfer by rotating the polarization inside the crystal.

© 1992 Optical Society of America

Theoretical and experimental investigation of nonlinear Faraday processes in diluted magnetic semiconductors

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