中国激光, 2019, 46 (6): 0614031, 网络出版: 2019-06-14
基于层叠结构的双波段太赫兹超材料增透膜设计 
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Dual-Band Terahertz Metamaterial Antireflection Coating Based on Multilayered Structure
图 & 表
图 1. 双波段增透膜的结构示意图。(a)基本单元;(b)第一层金-聚酰亚胺的平面结构;(c)第二层金-聚酰亚胺的平面结构
Fig. 1. Structural diagram of dual-band antireflection coating. (a) Unit cell; (b) planar structure of first layer of gold-polyimide; (c) planar structure of second layer of gold-polyimide
图 2. 双波段增透膜与裸硅的反射率和透射率
Fig. 2. Reflectivity and transmissivity for dual-band antireflection coating and bare silicon
图 4. 不同超材料结构金属表面在不同频点下的电场分布。(a)两层金属-聚合物结构,0.471 THz;(b)两层金属-聚合物结构,1.560 THz;(c) SRRs-聚合物结构,1.560 THz;(d)单层矩形-聚合物结构,1.560 THz
Fig. 4. Electric field distributions on metal surfaces of different metamaterial structures at different frequencies. (a) Two layer of metal-polyimide structure, 0.471 THz; (b) two layer of metal-polyimide structure, 1.560 THz; (c) SRRs-polyimide structure, 1.560 THz; (d) rectangle-polyimide structure, 1.560 THz
图 5. 反射率和带宽随h1的变化。(a) 0.471 THz附近反射率与h1的关系;(b) 1.560 THz附近反射率与h1的关系;(c) 0.471 THz附近带宽与h1的关系;(d) 1.560 THz 附近带宽与h1的关系
Fig. 5. Reflectivity and bandwidth versus h1. (a) Reflectivity versus h1 at frequency near 0.471 THz; (b) reflectivity versus h1 at frequency near 1.560 THz; (c) bandwidth versus h1 at frequency near 0.471 THz; (d) bandwidth versus h1 at frequency near 1.560 THz
图 6. 反射率和带宽随b的变化。(a) 0.471 THz附近反射率与b的关系;(b) 1.560 THz附近反射率与b的关系;(c) 0.471 THz附近带宽与b的关系;(d) 1.560 THz附近带宽与b的关系
Fig. 6. Reflectivity and bandwidth versus b. (a) Reflectivity versus b at frequency near 0.471 THZ; (b) reflectivity versus b at frequency near 1.560 THz; (c) bandwidth versus b at frequency near 0.471 THz; (d) bandwidth versus b at frequency near 1.560 THz
图 7. 反射率和带宽随c的变化。(a) 0.471 THz附近反射率与c的关系;(b) 1.560 THz附近反射率与c的关系;(c) 0.471 THz附近带宽与c的关系;(d) 1.560 THz附近带宽与c的关系
Fig. 7. Reflectivity and bandwidth versus c. (a) Reflectivity versus c at frequency near 0.471 THz; (b) reflectivity versus c at frequency near 1.560 THz; (c) bandwidth versus c at frequency near 0.471 THz; (d) bandwidth versus c at frequency near 1.560 THz
图 8. 不同结构的反射率以及不同频点附近反射率与b的关系。 (a)两种结构的反射率; (b) 0.813 THz附近反射率与b的关系;(c) 1.617 THz附近反射率与b的关系
Fig. 8. Reflectivity of different structures and relationship between reflectivity near different frequencies and rectangular side length b. (a) Reflectivity of two structures; (b) relationship between reflectivity versus b at frequency near 0.813 THz; (c) relationship between reflectivity versus b at frequency near 1.617 THz
乔楠, 延凤平, 王伟, 谭思宇, 李广森. 基于层叠结构的双波段太赫兹超材料增透膜设计[J]. 中国激光, 2019, 46(6): 0614031. Nan Qiao, Fengping Yan, Wei Wang, Siyu Tan, Guangsen Li. Dual-Band Terahertz Metamaterial Antireflection Coating Based on Multilayered Structure[J]. Chinese Journal of Lasers, 2019, 46(6): 0614031.
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