Advanced Photonics, Volume. 3, Issue 5, 056002(2021)
Active spintronic-metasurface terahertz emitters with tunable chirality Article Video , On the Cover
Fig. 1. Generation of chiral terahertz waves from a stripe-patterned spintronic-metasurface emitter. (a) Schematic of the experimental setup. The femtosecond pulse is focused to excite a stripe-patterned spintronic-metasurface emitter along the
Fig. 2. Modulation of terahertz spectrum and phase due to metasurface structure. (a) Terahertz waveforms of
Fig. 3. Generation and manipulation of chiral terahertz waveforms. (a) Typical time dependence of the electric-field vector for a chiral terahertz waveform generated from a metasurface emitter with
Fig. 4. Spectral anomaly due to coupling over the metasurface structure. (a) The normalized field spectra of
Fig. 5. Optimizing the terahertz ellipticity of the stripe-patterned metasurface emitter. (a) The broadband ellipticity
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Changqin Liu, Shunjia Wang, Sheng Zhang, Qingnan Cai, Peng Wang, Chuanshan Tian, Lei Zhou, Yizheng Wu, Zhensheng Tao, "Active spintronic-metasurface terahertz emitters with tunable chirality," Adv. Photon. 3, 056002 (2021)
Category: Research Articles
Received: Jul. 16, 2021
Accepted: Sep. 29, 2021
Posted: Oct. 8, 2021
Published Online: Oct. 26, 2021
The Author Email: Lei Zhou (phzhou@fudan.edu.cn), Yizheng Wu (wuyizheng@fudan.edu.cn), Zhensheng Tao (zhenshengtao@fudan.edu.cn)