稀土正铁氧体晶体的太赫兹光学调控研究  

Terahertz optical modulation research of rare-earth ferrite crystals

作　　者：武安华[1,2] 赵向阳 尚加敏[1,2] 申慧 苏良碧 WU Anhua;ZHAO Xiangyang;SHANG Jiamin;SHEN Hui;SU Liangbi(State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]中国科学院上海硅酸盐研究所,高性能陶瓷与超微结构国家重点实验室,上海201899 [2]中国科学院大学材料科学与光电工程中心,北京100049 [3]上海应用技术大学材料科学与工程学院,上海201418

出　　处：《量子电子学报》2023年第3期293-300,共8页Chinese Journal of Quantum Electronics

基　　金：国家重点研发计划(2021YFB3602503);国家自然科学基金(52272014,U2130124);上海市科学技术委员会国际合作项目(21520711300,20520750200)。

摘　　要：正交钙钛矿结构RFeO_(3)系列稀土正铁氧体材料是一类在近红外波段透明的铁磁材料,关于RFeO_(3)的超快自旋重取向及其相干控制的研究近年来成为相关领域的研究热点。由于固态材料的磁化振子和电子自旋共振能谱等基本性质的“元激发”能量均在太赫兹能量范围内,得益于太赫兹技术的发展,近年来利用太赫兹超快光学调控RFeO_(3)晶体中不同离子间的交换相互作用、磁各向异性自旋-声子耦合等也取得了一系列突破,对磁学的基础研究具有重要意义。结合笔者近几年的研究进展,总结了国内外RFeO_(3)晶体太赫兹光学调控研究情况,并对该类晶体的超快光磁研究进行了展望。RFeO_(3)with orthogonal perovskite structure is a class of transparent ferromagnetic materials in the near-infrared wave band,and research on the ultrafast spin reorientation transition of RFeO_(3)and its coherence control has become a hot topic in related fields in recent years.As the excitation energy of the basic properties of materials such as magnon and electron spin resonance is within the terahertz energy range,a series of breakthroughs have been made in the terahertz ultrafast optical regulation of RFeO_(3)crystals due to the rapid development of THz technology in recent years,which is of great significance to the basic research of magnetism.Combined with the author's research work in recent years,the progress of terahertz optical regulation of RFeO_(3)crystals at home and abroad has been reviewed in this paper and the future ultrafast photomagnetic research of RFeO_(3)crystals are also prospected.

关 键 词：激光物理 太赫兹 光学调控 稀土正铁氧体 

分 类 号：O441.4[理学—电磁学]