Chaosu Wang, Dafei Jiang, Xiaowei Jiang. Polarization Independent High Absorption Efficiency Wide Absorption Bandwidth Metamaterial Absorber[J]. Laser & Optoelectronics Progress, 2020, 57(3): 031601
- Laser & Optoelectronics Progress
- Vol. 57, Issue 3, 031601 (2020)
Fig. 1. Metal-dielectric-metal slow optical waveguide
Fig. 2. Schematic of metamaterial absorber structure model. (a) Three-dimensional structure; (b) plane diagram of structural elements
Fig. 3. PHWA model in FDTD. (a) PHWA plan; (b) PHWA three-dimensional picture
Fig. 4. Optical absorption efficiency of PHWA under different polarization states. (a) Light absorption, reflection, and transmission of PHWA under TM polarization; (b) light absorption of PHWA under TE and TM polarizations
Fig. 5. Influence of material thickness on absorption bandwidth. (a) Metal layer thickness; (b) dielectric layer thickness
Fig. 6. Effect of N on absorption bandwidth
Fig. 7. Effect of waveguide layer width on absorption bandwidth
Fig. 8. PHWA magnetic field distribution at different wavelengths. (a) 1 μm; (b) 1.5 μm; (c) 2 μm
Fig. 9. Effect of different incident angles on PHWA absorption efficiency
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