We report the first investigation of electrohyphen;optical properties of Cd1minus;xMnxTe films, prepared by the ionizedhyphen;cluster beam deposition technique. Measurements of the birefringence Dgr;nof the films were performed under applied electric field in the wavelength region from 800 to 450 nm. Major results obtained are as follows: The value of Dgr;nrises to second power against the applied electric field, and for a film withx=0.77 a large quadratic electrohyphen;optical coefficient of 3.5times;10minus;12cm2/V2is obtained at 633 nm. The wavelength dispersion of Dgr;nis observed near its band gap, suggesting that the electrohyphen;optical properties of these films are caused by the Franzndash;Keldysh effect.
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