The MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Applied Physics School, Nankai University, Tianjin 300457, China.
Opt Lett. 2011 May 15;36(10):1779-81. doi: 10.1364/OL.36.001779.
A series of vanadium-doped lithium niobate (LN:V) crystals has been grown and their photorefractive properties were investigated. For 0.1 mol. % V-doped LiNbO(3), a fast photorefractive response of 160 ms was obtained with a 351 nm laser and a total light intensity of 583 mW/cm(2). The measurements of the x-ray photoelectron spectrum and electron paramagnetic resonance show that V(3+), V(4+), and V(5+) ions exist in these LN:V crystals. V(3+) and V(4+) ions correspond to the 420 and 475 nm absorption peaks, respectively. The fast photorefractive response and high sensitivity indicate that LN:V is a suitable candidate for UV photorefractive applications.
已经生长了一系列掺钒的铌酸锂 (LN:V) 晶体，并研究了它们的光折变性能。对于 0.1 mol.% 的 V 掺杂 LiNbO(3)，在 351nm 激光和 583mW/cm(2)的总光强下，获得了 160ms 的快速光折变响应。X 射线光电子能谱和电子顺磁共振测量表明，这些 LN:V 晶体中存在 V(3+)、V(4+) 和 V(5+) 离子。V(3+) 和 V(4+) 离子分别对应于 420nm 和 475nm 吸收峰。快速光折变响应和高灵敏度表明 LN:V 是用于紫外光光折变应用的合适候选材料。
