Order-of-magnitude reduction of the photorefractive response time in rhodium-doped Sr(0.6)Ba(0.4)Nb(2)O(6) with a dc electric field.

We present what is to our knowledge the first report on the photorefractive properties of Rh-doped Sr(0.6)Ba(0.4)Nb(2)O(6) and experimental results showing a reduction of the photorefractive two-beam coupling response time by more than an order of magnitude with an external dc field of 10 kV/cm.