Haipeng Zhao, Xinyuan Zhang, Yunbin He, Shuliang Dou, Yao Li, Xiaofeng Li, Yaohui Zhan. Self-Adaptive Temperature Modulation Based on Thermal Induced Phase Changing of Vanadium Dioxide[J]. Acta Optica Sinica, 2021, 41(15): 1523001
- Acta Optica Sinica
- Vol. 41, Issue 15, 1523001 (2021)
Fig. 1. Schematic of working principles
Fig. 2. Influence of cavity thickness on main physical parameters. (a) εH; (b)
Fig. 3. Optical response before and after genetic algorithm optimization. (a) Structural schematics; (b) without filters; (c) with filters
Fig. 4. Influence of angle on spectral emissivity before and after phase transition. (a) Metal-state, TE polarization; (b) metal-state, TM polarization; (c) semiconducting-state, TE polarization; (d) semiconducting-state, TM polarization
Fig. 5. Net cooling power calculation. (a) Real part of refractive index of VO2 at different film temperatures; (b) imaginary part of refractive index of VO2 at different film temperatures; (c) Pnet under different Tamb and Tfilm conditions; (d) Pnet, Patm, and Prad at Tamb=20 ℃
Fig. 6. Calculation results based on actual ambient temperatures. (a) Solar irradiance; (b) change of Tfilm and Prad with actual ambient temperature Tamb
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Table 1. Filter structure parameters optimized by genetic algorithm
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