Kerr electro-optic properties of rare-earth doped Pb(Mg1/3Nb2/3)O3-PbTiO3 crystals
Abstract
Pb(Mg1∕3Nb2∕3)O3-PbTiO3 (PMN-PT) crystals exhibit significant potential for applications in the electro-optical (EO) field, owing to their low half-wave voltage and high electro-optic coefficients, ease of miniaturization, and integration. However, the ferroelectric phase PMN-PT crystals exhibit a low extinction ratio due to light scattering and reflection by domain walls. In this study, high-transmittance paraelectric phase PMN-PT crystals were synthesized through compositional optimization and rare-earth ion doping. The optical and Kerr electro-optic properties of the crystals were systematically analyzed, considering the PT composition and doping with La3+ and Sm3+ ions. The La-PMN-8PT crystals demonstrated a transmission rate of 75%, a quadratic electro-optic coefficient of 4.28 × 10−16 m2/V2, an extinction ratio of 29 dB, and a half-wave voltage of 270 V. Additionally, the electro-optical performance of the crystals was evaluated over a range of temperatures, revealing excellent temperature stability in the La-doped crystals. These results highlight the promising potential of La-doped PMN-PT crystals for advanced electro-optical applications.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (7)
Hongjiang Wu
Ruibin Xiong
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou 350002,
Rongbing Su
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou 350002,
Zujian Wang
Bin Su
Lingfei Lv
State Key Laboratory of Functional Crystals and Devices Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou China
Chao He
Department of Chemistry