Journal of the European Optical Society-Rapid Publications, Volume. 19, Issue 1, 2022017(2023)
Ultra-broadband and tunable infrared absorber based on VO2 hybrid multi-layer nanostructure
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Fig. 1. Schematic diagram of absorber by hybrid integration of the upper and lower parts.
Fig. 2. (a) Schematic of the unit cell of the absorber. (b) The cross-sectional view of the absorber. (c) Top view of the unit cell for the absorber.
Fig. 3. (a) Absorption change with h1. (b) Absorption change with h2. (c) Absorption change with h3. (d) Absorption change with L.
Fig. 4. (a) Absorption change with L when the VO2 nanocylinder array is prepared on the front illuminated surface. (b) Absorption change with the radius of the VO2 nanocylinder array r. (c) Absorption change with the height of the VO2 nanocylinder array h. (d) Absorption change with the structural spacing Δh. (e) Absorption change with the variation of individual cycle size p.
Fig. 6. (a) The electric field distribution in XY plane. (b) The magnetic field distribution in XY plane. (c) The electric field distribution in XZ plane. (d) The magnetic field distribution in XZ plane.
Fig. 7. (a) Steady state temperature field distribution of the absorber. (b) Transient temperature change of the absorber. (c) Absorption change with alignment deviation. (d) Absorption change with T1 and T2. (e) Absorption change with ambient temperature T.
Fig. 9. (a) Absorption spectra at different incident angles under TE. (b) Absorption spectra at different incident angles under TM.
Table 1. Comparison of works on the broadband absorbers in the NMIR range in recent years.
View tableView in ArticleTable 1. Comparison of works on the broadband absorbers in the NMIR range in recent years.
Works Device configuration ΔB (μm) FOM (μm) Tuning method h(λ) × ΔB (μm) Materials involved Maximum incidence angle [ 29 ]MIM tri-layer 0.4–2 (1.6) 91.4% 0.82 N/A N/A Ti, SiO2, Ti 50° [ 14 ]MIM tri-layer 0.1–1.9 (1.8) 93.2% 1.67 N/A N/A Ti, W, SiO2, Au 45° [ 43 ]Planar layered thin film structures 2–5 (3) 85.3% 2.55 Thermal 1.8 Sapphire, VO2, PMMA, Au 60° [ 44 ]L-shaped hybrid nanostructures MIM tri-layer 4.5–6.5 (2) 92.4% 1.84 Thermal 1.54 Au, VO2, Au N/A [ 28 ]Patterned plasmonic metasurface MIM tri-layer 1.6–4.7 (3.1) 93.7% 2.9 Thermal 1.92 Cr, VO2 60° [ 45 ]Hybrid nanodisc array MIM tri-layer 0.7–1.8 (1.1) 87.6% 0.96 Thermal 0.7 Au, VO2, Au 70° [ 42 ]Nanocolumn array 2–4.8 (2.8) 95.5% 2.67 Thermal 1.4 VO2, SiO2, W, Al2O3 50° Our work Hybrid multi-layer nanostructure 1.5–8 (6.5) 94.7% 6.15 Thermal 3.35 VO2, SiO2, Ti 60°
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Junyi Yan, Yi Li, Mengdi Zou, Jiaqing Zhuang, Jincheng Mei, Xingping Wang, Xin Zhang, Yuda Wu, Chuang Peng, Wenyan Dai, Zhen Yuan, Ke Lin. Ultra-broadband and tunable infrared absorber based on VO2 hybrid multi-layer nanostructure[J]. Journal of the European Optical Society-Rapid Publications, 2023, 19(1): 2022017
Paper Information
Category: Research Articles
Received: Aug. 20, 2022
Accepted: Dec. 5, 2022
Published Online: Aug. 31, 2023
The Author Email: Li Yi (liyi@usst.edu.cn)
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