光学学报, 2018, 38 (1): 0124001, 网络出版: 2018-08-31
基于石墨烯表面等离激元的双支节结构光电调制器 
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Graphene Surface Plasmon Polaritons Based Photoelectric Modulator with Double Branched Structure
图 & 表
图 1. 石墨烯光电调制器结构示意图。 (a)石墨烯/介质/石墨烯支节结构三维结构剖面图; (b)石墨烯外加电压示意图
Fig. 1. Structural diagram of graphene photoelectric modulator. (a) Three dimensional profile of graphene/dielectric/graphene branched structure; (b) schematic of applied voltage on graphene
图 2. 石墨烯光电调制器制备过程示意图。 (a)二氧化硅衬底; (b)矩形支节波导结构; (c)石墨烯包裹支节结构; (d)石墨烯光电调制器
Fig. 2. Schematic diagram of preparation process of graphene photoelectric modulator. (a) Silicon dioxide substrate; (b) rectangular branched waveguide structure; (c) graphene encapsulated branched structure; (d) graphene photoelectric modulator
图 4. (a) d1=d2=315 nm和(b) d1=d2=560 nm时主波导内电磁场能量密度时间均值分布; (c) d1=d2=315 nm和(d) d1=d2=560 nm时主波导内输入端和输出端光场能量与石墨烯化学势的关系
Fig. 4. Distributions of time average value of electromagnetic field energy density in main waveguide when (a) d1=d2=315 nm and (b) d1=d2=560 nm; relationship between optical field energy of input end and output end in main waveguide and chemical potential of graphene when (c) d1=d2=315 nm and (d) d1=d2=560 nm
图 5. 主波导电磁场能量与支节长度的关系。 (a)介质材料为SiO2; (b)介质材料为Si
Fig. 5. Relationship between electromagnetic field energy in main waveguide and branch length. (a) Dielectric material is SiO2; (b) dielectric material is Si
图 6. 主波导内电磁场能量与入射光波长的关系。 (a) d1=d2=315 nm; (b) d1=d2=560 nm
Fig. 6. Relationship between electromagnetic field energy in main waveguide and incident wavelength. (a) d1=d2=315 nm; (b) d1=d2=560 nm
李志全, 冯丹丹, 李欣, 白兰迪, 刘同磊, 岳中, 顾而丹. 基于石墨烯表面等离激元的双支节结构光电调制器[J]. 光学学报, 2018, 38(1): 0124001. Zhiquan Li, Dandan Feng, Xin Li, Landi Bai, Tonglei Liu, Zhong Yue, Erdan Gu. Graphene Surface Plasmon Polaritons Based Photoelectric Modulator with Double Branched Structure[J]. Acta Optica Sinica, 2018, 38(1): 0124001.
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