Xinying Yu, Junya Yan, Sen Yang, Ting Zhang. Design and Simulation of T-Shaped Terahertz Metamaterial Absorber[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2116003
- Laser & Optoelectronics Progress
- Vol. 58, Issue 21, 2116003 (2021)
Fig. 1. Structural diagram of T-shaped absorber
Fig. 2. Influences of parameters on absorption performance of T-shaped absorber. (a)W1; (b) W2; (c) L2
Fig. 3. Absorption curve of T-shaped absorber
Fig. 4. Current distributions of T-shaped absorber. (a) Bottom current distribution; (b) top current distribution
Fig. 5. Resonance frequency of T-shaped absorber versus
Fig. 6. Structural diagram of polarization-insensitive T-shaped absorber
Fig. 7. Influences of polarization angle on absorption performance in different modes. (a) TE mode; (b) TM mode
Fig. 8. Absorptivity of polarization-insensitive T-shaped absorber
Fig. 9. Current distributions of polarization-insensitive T-shaped absorber in different modes. (a) Bottom current distribution in TE mode; (b) top current distribution in TE mode; (c) bottom current distribution in TM mode; (d) top current distribution in TM mode
Fig. 10. Resonant frequency of polarization-insensitive T-shaped absorber versus
Fig. 11. Structural diagram of frequency-adjustable T-shaped absorber
Fig. 12. Dynamically switchable absorption spectra of absorber pumped by lasers with different wavelengths
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Table 1. Performance comparison of three kinds of T-shaped absorbers
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