太赫兹科学与电子信息学报2024，Vol.22Issue(8)：813-822,10.DOI:10.11805/TKYDA2024204
单层铁磁体中的超快太赫兹辐射研究进展
Research progress of ultrafast terahertz radiation in single-layer ferromagnets
摘要
Abstract
Broadband terahertz radiation sources have an urgent practical application demand in terahertz science and technology,and are the core components for constructing terahertz application systems represented by spectroscopy and imaging.Compared with commonly used commercial terahertz sources,spin-optoelectronics-based terahertz radiation sources have a series of advantages such as ultra-wide frequency spectrum,solid-state stability,and low cost.Currently,the research on the theory,materials,and device technology of spin-optoelectronics-based terahertz radiation sources is still in its infancy.This paper mainly summarizes the terahertz generation mechanism of single-layer ferromagnetic layers in recent years,and the relationship between the polarity of terahertz radiation signals and the excitation configuration.By changing the direction of the magnetic field,the direction of the incident laser,and the direction of sample incidence,the contributions of ultrafast demagnetization,Anomalous Hall Effect(AHE),and Anomalous Nernst Effect(ANE)to the terahertz radiation characteristics can be effectively distinguished,providing a reference for the research in the field of terahertz spin-optoelectronics.关键词
太赫兹辐射源/铁磁薄膜/超快退磁/反常霍尔效应/反常能斯特效应Key words
terahertz radiation source/ferromagnetic film/Ultrafast Demagnetization(UDM)/Anomalous Hall Eeffect/Anomalous Nernst Effect分类
信息技术与安全科学引用本文复制引用
洪晖祥,张慧萍,许涌,吴少晖,金钻明,彭滟..单层铁磁体中的超快太赫兹辐射研究进展[J].太赫兹科学与电子信息学报,2024,22(8):813-822,10.基金项目
国家重点研发计划资助项目(2023YFF0719200) （2023YFF0719200）
国家自然科学基金资助项目(61988102 （）
62322115) （）
高等学校学科创新引智计划资助项目(D18014) （D18014）
上海市科技创新行动计划资助项目(22JC1400200 （）
21S31907400) （）
