Light induced ferroelectric domain nucleation in LiNbO3 crystal
Using the tightly focused visible light (wavelength λ=488nm) illuminating, the ferroelectric domain patterns of the undoped lithium niobate crystal have been demonstrated. The influence of the visible light intensity on the domain nucleation field was investigated. The reduction of nucleation field decreases exponentially with increasing incident irradiation intensity. Once a domain is nucleated it can be dictated by the far-field light diffraction patterns. An assumption is proposed that the reduction of nucleation field is directly related to the defects mobility and structure of the crystals.
domain nucleation LiNbO3 crystal light induced
Yunlin Chen Haiwei Li Yuanan Li
School of Science, Beijing Jiaotong University, Beijing 100044, China
国际会议
青岛
英文
1383-1386
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）