Strengthening of the photorefractive response in a ferroelectric Ba2NaNb5O15 crystal in an alternating external field
Nesterkin O. R., Shershakov E. P., Zel'dovich B. Ya., Novikov A. D.
The writing of a static photorefractive grating in the ferroelectric Ba2NaNb50]5 with a traveling interference pattern and an applied alternating field has been studied experimentally. Twoand four-wave arrangements were studied by a synchronous-detection method.