Mingxi Zhao, Yongzhi Cheng, Haoran Chen, Rongzhou Gong. Design of Dual-Band Terahertz Chiral Metasurface[J]. Acta Optica Sinica, 2019, 39(4): 0416002
- Acta Optica Sinica
- Vol. 39, Issue 4, 0416002 (2019)
Fig. 1. Physical model of CMS structure. (a) Two-dimensional periodic array structure; (b) front view of unit structure; (c) perspective view of unit structure
Fig. 2. Simulated transmission coefficients of CMS. (a) Transmission coefficient for linear polarization; (b) transmission coefficient for circular polarization
Fig. 3. Effective electromagnetic parameters of CMS. (a) θ and η; (b) Re(n), Im(n), Re(κ), and Im(κ); (c) Re(n-), Im(n-), Re(n+), and Im(n+); (d) Re(ε) and Re(μ)
Fig. 4. Surface current density distributions of CMS unit structure driven by electric filed incident along y-axis at different resonance frequencies. (a) f1=0.36 THz; (b) f2 =0.56 THz; (c) f3=1.19 THz; (d) f4=1.44 THz
Fig. 5. Terahertz polarization characteristics of CMS under different connected circular metallic patch radii. (a) θ; (b) η; (c) Re(n-); (d) Re(n+)
Fig. 6. Terahertz polarization characteristics of CMS under different dielectric layer thicknesses. (a) θ; (b) η; (c) Re(n+); (d) Re(n-)
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