Title :
Influence of external electric field on two-wave mixing feature in Ce: KNSBN crystal
Author :
Wang, Ying ; Jiang, Yi-hui ; Li, Yan ; Deng, Gui-ying ; Li, Pan-lai ; Huai, Su-fang ; Li, Xu ; Guo, Qing-lin
Author_Institution :
Coll. of Phys. Sci. & Lechnology, Hebei Univ., Baoding, China
Abstract :
We studied the influence of external electric field on two-wave mixing feature in a Ce: KNSBN crystal using a non simultaneous readout device on the best writing conditions (with best polarization of writing beam). The effective gain and diffraction efficiency of two-wave mixing increased as well as the response time decreased as positive electric field increased applied along the c-axis of the crystal. The behaviors of two-wave mixing features mentioned were also observed in a negative electric field range of 0~2000V/cm, but the effective gain began to decrease while the negative electric field was increased upon 2000V/cm, the response time increased as well.
Keywords :
barium compounds; cerium; electric field effects; light polarisation; multiwave mixing; optical materials; photorefractive materials; potassium compounds; sodium compounds; strontium compounds; KNSBN:Ce; crystals; diffraction efficiency; effective gain efficiency; external electric field effects; photorefractive material; two-wave mixing; writing beam polarization; Crystals; Diffraction; Electric fields; Laser beams; Laser excitation; Optical beams; Time factors; Ce; KNSBN crystal; external electric field; two-wave mixing;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6067758
