Guangsen Li, Fengping Yan, Wei Wang, Nan Qiao. Analysis of Multiband and Broadband Electromagnetically Induced Transparency Based on Three-Dimensional Coupling[J]. Laser & Optoelectronics Progress, 2018, 55(12): 121601
- Laser & Optoelectronics Progress
- Vol. 55, Issue 12, 121601 (2018)
Fig. 1. Structural drawings of metamaterial. (a) 3D view; (b) front view; (c) upward view
Fig. 2. EIT effect produced by three kinds of structures
Fig. 3. Electric and magnetic fields. (a) Electric field at 0.68 THz; (b) electric field at 1.09 THz; (c) magnetic field at 0.68 THz; (d) magnetic fields at 1.09 THz
Fig. 4. (a) EIT effect of reverse double SRR; (b) EIT effect of forward single SRR; (c) distributions of electromagnetic fields of various decomposed structures
Fig. 5. Relationship between the bandwidth of the transmission peak and the difference of resonance frequencies
Fig. 6. Effect of distance between the SRRs on EIT effect
Fig. 7. Effect of the arm-length of SRRs on EIT effect
Fig. 8. Variations of (a) parameter S, (b) refractive index and group index with frequency
Fig. 9. (a) EIT curves at different refractive indices and (b) refractive index sensitivity for three frequency band
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