Title :
Crystal growth and photorefractive properties of (Cu, Ce)-doped KNSBN crystal
Author :
Zhang, Y.L. ; Pun, E.Y.B. ; Lu, D.X. ; Wong, E.M.W. ; Chung, P.S. ; Mo, D.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
KNSBN crystal has been grown successfully with both Cu and Ce dopings. It is found that the Cu and Ce dopings increase effectively the absorption of KNSBN crystal and enhance the photorefractive properties at wavelengths 400-650 nm. Two-wave mixing and self-pumped phase conjugation experiments were carried out on these crystals at 632.8 nm. The two-wave coupling gain and the self-pumped phase conjugation reflectivity were measured to be as large as 10 cm-1 and 70%, respectively
Keywords :
barium compounds; cerium; copper; crystal growth from melt; ferroelectric materials; multiwave mixing; optical phase conjugation; photorefractive materials; potassium compounds; sodium compounds; strontium compounds; 400 to 650 nm; 632.8 nm; KNSBN:Cu,Ce; KNaSrBaNb2O6:Cu,Ce; absorption; coupling gain; crystal growth; doped KNSBN; photorefractive properties; reflectivity; self-pumped phase conjugation; two-wave mixing; Absorption; Crystals; Doping; Ferroelectric materials; Laser beams; Laser excitation; Optical coupling; Photorefractive materials; Probes; Reflectivity;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598110
