Chinese Journal of Lasers, Volume. 46, Issue 5, 0508005(2019)
Research Progress of Terahertz Radiation Based on Ultrafast Electron Spin Dynamics
Recent research progress of terahertz (THz) radiation generation based on the ultrafast spin dynamics is reviewed. The transient spin-charge conversion based on the inverse spin Hall effect and the Rashba-Edelstein effect is introduced, and it is pointed out that the ferromagnetic/non-magnetic heterostructure has been used to design a low-cost and high-efficiency THz radiation source. The efficiency and bandwidth of a spintronics-based THz emitter can be improved by optimizing layer thickness, growth conditions, substrates, and construction. The applications of the THz emission spectrum are outlined in the study of the ultrafast formation dynamics of the spin Seebeck effect.
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Zuanming Jin, Bangju Song, Jugeng Li, Shunnong Zhang, Shunyi Ruan, Ye Dai, Xiaona Yan, Xian Lin, Guohong Ma, Jianquan Yao. Research Progress of Terahertz Radiation Based on Ultrafast Electron Spin Dynamics[J]. Chinese Journal of Lasers, 2019, 46(5): 0508005
Category: nonlinear optics
Received: Dec. 18, 2018
Accepted: Feb. 18, 2019
Published Online: Nov. 11, 2019
The Author Email: Jin Zuanming (physics_jzm@shu.edu.cn), Ma Guohong (ghma@staff.shu.edu.cn)