Photo-Induced Carriers in Near-Stoichiometric LiNbO3:Fe Crystal
GAO Guo-Xiang, XU Jing-Jun, ZHANG Shu, LIU Wen-Hui, LIU Hong-De, KONG Yong-Fa, CHEN Shao-Lin, ZHANG Guang-Yin, SUN Qian
The MOE Key Laboratory of Advanced Technique and Fabrication of Weak-Light Nonlinear Photonics Materials, and Tianjin Key Laboratory of Photonics Materials and Technology of Information Science, College of Physics, Nankai University, Tianjin 300071
Photo-Induced Carriers in Near-Stoichiometric LiNbO3:Fe Crystal
The MOE Key Laboratory of Advanced Technique and Fabrication of Weak-Light Nonlinear Photonics Materials, and Tianjin Key Laboratory of Photonics Materials and Technology of Information Science, College of Physics, Nankai University, Tianjin 300071
Abstract： We detect the photo-induced carriers in near-stoichiometric iron doped LiNbO3 crystal by the holographic technique. The results show that the dominant carriers are electrons in the sample with Li/Nb ratio of 0.9988. By analysis of the OH- absorption spectra of the crystal, we contribute the electron domination in near-stoichiometric Fe-doped LiNbO3 crystal to the existence of NbLi which provides the anti-site defect to Fe2+.
2006, Vol. 23 
