Active Spintronic-metasurface Terahertz Emitters with Tunable Chirality
- Resource Type
- Conference
- Authors
- Wang, Shunjia; Liu, Changqin; Zhang, Sheng; Cai, Qingnan; Wang, Peng; Tian, Chuanshan; Zhou, Lei; Wu, Yizheng; Tao, Zhensheng
- Source
- 2022 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2022 Conference on. :1-2 May, 2022
- Subject
- Photonics and Electrooptics
Polarization
Lasers and electrooptics
Broadband communication
Magnetic fields
Electrooptical waveguides
- Language
In this work, we propose a novel spintronic-metasurface terahertz emitter for the generation and manipulation of coherent broadband terahertz waves. The ellipticity of the chiral terahertz waves can reach >0.75 over the entire 1-5 THz broadband and the polarization state can be easily controlled by an external magnetic field.