Ruizhen Hu, Jianyang Wang, Qiannan Wu. A Metamaterial Terahertz Multi-Frequency Absorber Based on Square Symmetry[J]. Laser & Optoelectronics Progress, 2022, 59(5): 0516001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 5, 0516001 (2022)
Fig. 1. Metamaterial terahertz multi-frequency absorber with square symmetric structure. (a) Three-dimensional structure diagram; (b) front view and structural dimensions
Fig. 2. Simulation results of a square symmetric metamaterial absorber
Fig. 3. Current distribution diagram on terahertz absorber surface in transverse magnetic polarization state
Fig. 4. Comparison of absorption curves of different cross bond widths g
Fig. 5. Comparison of absorption curves of different cross bond lengths k
Fig. 6. Comparison of absorption curves of different corner lengths a
Fig. 7. Comparison of absorption curves of different edge angle widths d
Fig. 8. Comparison of absorption curves of different margins L
Fig. 9. Comparison of absorption curves of different substrate thicknesses t
Fig. 10. Comparison of absorption curves for different period lengths W
Fig. 11. Comparison of absorption curves of different incident angles
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Table 1. Structural parameters of square symmetric metamaterial absorber
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Table 2. Research results of terahertz multi-frequency absorbers
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