Journal of Applied Optics, Volume. 45, Issue 5, 903(2024)
Design and simulation of 0.2 μm~20 μm ultra-wide spectrum metamaterial absorption structure
Figures & Tables(20)
Fig. 3. Optimal design flow of 5 separate layers structure by genetic algorithm
Fig. 4. 0.2 μm~20 μm ultra-wide spectrum metamaterial absorption structure
Fig. 5. Reflection loss and absorption efficiency of each frequency in the first partition
Fig. 6. Reflection loss and absorption efficiency of each frequency in the second partition
Fig. 7. Reflection loss and absorption efficiency of each frequency in the third partition
Fig. 8. Total absorption efficiency curve of ultra-wide spectrum metamaterial absorption structure in wavelength range of 0.2 μm~20 μm
Fig. 9. Absorption property simulation of partition 1 using optimal structure parameters
Fig. 10. Absorption property simulation of partition 2 using optimal structure parameters
Fig. 11. Absorption property simulation of partition 3 using optimal structure parameters
Fig. 12. Lorentz fit curve for polishing absorption cycle indent of partition 1
Fig. 13. Absorption efficiency simulation of five separation layers in partition 1 at different incident angles
Fig. 14. Absorption efficiency simulation of five separation layers in partition 2 at different incident angles
Fig. 15. Absorption efficiency simulation of five separation layers in partition 3 at different incident angles
Fig. 16. Total absorption efficiency curves of ultra-wide spectrum metamaterial absorption structure in range of 0.2 μm~20 μm at different angles
Table 1. Parameters of 3 scales 5 separate layers structure
View tableView in ArticleTable 1. Parameters of 3 scales 5 separate layers structure
Name Surface mental structure dimension/nm Dielectric layer thickness/nm The fifth layer of Partition 3 31.3 8.63 The fourth layer of Partition 3 203 29.0 The third layer of Partition 3 167 20.7 The second layer of Partition 3 523 24.3 The first layer of Partition 3 334 12.7 The fifth layer of Partition 2 175 190 The fourth layer of Partition 2 611 158 The third layer of Partition 2 534 130 The second layer of Partition 2 841 121 The first layer of Partition 2 1 670 163 The fifth layer of Partition 1 392 143.6 The fourth layer of Partition 1 2 490 814 The third layer of Partition 1 1 850 516 The second layer of Partition 1 5 200 334 The first layer of Partition 1 4 950 478
Table 2. Reflection loss and absorption efficiency at typical frequencies
View tableView in ArticleTable 2. Reflection loss and absorption efficiency at typical frequencies
Frequency/THz Reflection loss/dB Absorption efficiency 12.21 −14.08 0.802 4 19.42 −20.10 0.901 2 35.98 −21.16 0.912 5 49.43 −18.99 0.887 7 60.64 −20.09 0.901 1 71.29 −19.00 0.887 8 84.75 −21.14 0.912 3 97.11 −20.55 0.906 2 132.2 −19.42 0.893 1 179.9 −20.54 0.906 1 224.8 −19.61 0.895 4 286.4 −22.52 0.925 1 350.9 −19.62 0.895 5 395.7 −20.54 0.906 0 443.3 −19.40 0.892 9 305.2 −13.83 0.796 5 470.1 −20.68 0.907 6 650.5 −19.23 0.890 7 913.6 −20.96 0.910 4 1208 −19.08 0.888 9 1516 −21.35 0.914 4 1824 −19.02 0.888 1 2119 −21.04 0.911 3 2217 −20.39 0.904 4
Table 3. Optimal parameters of equivalent resonant circuit
View tableView in ArticleTable 3. Optimal parameters of equivalent resonant circuit
Parameters The first layer The second layer The third layer The fourth layer The fifth layer Resistance1(Ω) 247.74 493.97 787.70 1332.50 1130.59 Inductance1(H) 1.89×10−16 1.67×10−16 3.99×10−17 6.13×10−17 2.06×10−16 Condenser1(F) 8.03×10−13 7.91×10−13 1.10×10−13 1.36×10−13 3.39×10−15 Resistance2(Ω) 341.33 647.69 580.54 1865.57 3177.54 Inductance2(H) 2.021×10−16 2.43×10−16 9.84×10−16 4.98×10−16 2.56×10−16 Condenser2(F) 2.97×10−13 3.58×10−13 9.68×10−14 6.45×10−14 5.53×10−15 Resistance3(Ω) 316.04 421.52 1309.93 894.81 1809.43 Inductance3(H) 1.75×10−16 1.78×10−16 4.93×10−17 1.14×10−16 2.52×10−16 Condenser3(F) 8.08×10−13 3.67×10−13 9.50×10−14 8.05×10−14 5.84×10−14
Table 4. Absorption efficiency of five separation layers structure at different incident angles
View tableView in ArticleTable 4. Absorption efficiency of five separation layers structure at different incident angles
Incident angles/(°) Absorption efficiency better than 80% Partition 1 frequency range/ THz Partition 2 frequency range / THz Partition 3 frequency range / THz 0 [12.21,88.67] [64.12,443.30] [310.30,2 217] 10 [12.41,88.67] [65.15,443.30] [315.50,2 217] 20 [12.62,88.67] [67.22,443.30] [325.80,2 217] 30 [13.65,88.67] [73.40,443.30] [346.40,2 217] 40 [15.30,88.67] [83.71,443.30] [397.90,2 217] 50 [18.80,88.67] [105.40,443.30] [495.90,2 217] 60 [27.46,88.67] [161.00,238.80] [743.30,1 152.00]
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Ligang TAN, Meiting WEI, Jie LI, Mingwei LUO. Design and simulation of 0.2 μm~20 μm ultra-wide spectrum metamaterial absorption structure[J]. Journal of Applied Optics, 2024, 45(5): 903
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Received: Jan. 19, 2024
Accepted: --
Published Online: Dec. 20, 2024
The Author Email: WEI Meiting (魏美亭)
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