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Potassim sodiam strontium barium niobate (K_(1-x)Na_x)_2m(Sr_(1-y)Ba_y)_(1-m)Nb_2O_6,abbreviatedas KNSBN crystal family is one of the best photorefractive materials which can currentlycarry out the cat self-pumped phase conjugation. In recent years in the photorefractivefield. this crystal is very attractive for researcher at home and abroad because it has large
Potassim sodiam strontium barium niobate (K_ (1-x) Na_x) _2m (Sr_ (1-y) Ba_y) _ (1-m) Nb_2O_6, abbreviatedas KNSBN crystal family is one of the best photorefractive materials which can currentlycarry out the the cat self -pumped phase conjugation. In recent years in the photorefractivefield. this crystal is very attractive for researcher at home and abroad because it has large