TY - JOUR
T1 - Photorefractive properties of KTa1-XNbXO3 in the paraelectric phase Aharon Agranat, Victor Leyva, Koichi
AU - Agranat, Aharon
AU - Leyva, Victor
AU - Sayano, Koichi
AU - Yariv, Amnon
PY - 1990/1/4
Y1 - 1990/1/4
N2 - We report the growth of doped Potassium Tantalate Niobate (KTN) crystals, and the characterization of their photorefractive properties m the paraelectric region. First the Top Seeded Solution Growth Method is reviewed and the growth process of a KTN:Cu, V crystal is described. Results of diffraction efficiency measurements of photorefractive gratings in these crystals at the paraelectric phase, are then presented. These experiments show high diffraction efficiencies, and indicate the possibility of amplitude modulation of the gratings by an external field. Results showing fixation of the gratings when the sample is close to the phase transition temperature are also described.
AB - We report the growth of doped Potassium Tantalate Niobate (KTN) crystals, and the characterization of their photorefractive properties m the paraelectric region. First the Top Seeded Solution Growth Method is reviewed and the growth process of a KTN:Cu, V crystal is described. Results of diffraction efficiency measurements of photorefractive gratings in these crystals at the paraelectric phase, are then presented. These experiments show high diffraction efficiencies, and indicate the possibility of amplitude modulation of the gratings by an external field. Results showing fixation of the gratings when the sample is close to the phase transition temperature are also described.
UR - http://www.scopus.com/inward/record.url?scp=84958494210&partnerID=8YFLogxK
U2 - 10.1117/12.962143
DO - 10.1117/12.962143
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AN - SCOPUS:84958494210
SN - 0277-786X
VL - 1148
SP - 52
EP - 66
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
ER -