• Journal of Infrared and Millimeter Waves
  • Vol. 40, Issue 4, 561 (2021)
Ding-Yang XU, Li HAN, Huai-Zhong XING*, and Jun-Hao CHU
Author Affiliations
  • College of Science, Donghua University, Shanghai 201620, China
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    DOI: 10.11972/j.issn.1001-9014.2021.04.016 Cite this Article
    Ding-Yang XU, Li HAN, Huai-Zhong XING, Jun-Hao CHU. Plasmon-induced transparency in π-cascade structure of phosphorene[J]. Journal of Infrared and Millimeter Waves, 2021, 40(4): 561 Copy Citation Text show less
    Schematic diagram of phosphorene structure (a)3D phosphorene structure, (b)X-Y plane 2D phosphorene structure, (c)armchair direction, (d)zigzag direction
    Fig. 1. Schematic diagram of phosphorene structure (a)3D phosphorene structure, (b)X-Y plane 2D phosphorene structure, (c)armchair direction, (d)zigzag direction
    Schematic diagram of structure (a)Cascaded π-structure 2D, (b)3D array, (c)compact π-structure 2D, (d)3D
    Fig. 2. Schematic diagram of structure (a)Cascaded π-structure 2D, (b)3D array, (c)compact π-structure 2D, (d)3D
    Transmission spectra under different structures Note: The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.42 μm), B(5.47 μm), C(5.48 μm) and D(5.56 μm) in fig. 3(a); (d) shows the electric field distribution of A(14.20 μm), B(14.50 μm), C(14.96 μm) and D(14.56 μm) in Figure 3(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Fig. 3. Transmission spectra under different structures Note: The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.42 μm), B(5.47 μm), C(5.48 μm) and D(5.56 μm) in fig. 3(a); (d) shows the electric field distribution of A(14.20 μm), B(14.50 μm), C(14.96 μm) and D(14.56 μm) in Figure 3(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Transmission spectrua under π-cascade structure of phosphorene, Note: (a) and (b) indicate the transmission spectra when d3 is 10 nm, 20 nm, 30nm and 40 nm, respectively. The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.44 μm), B(5.46 μm), C(5.47 μm), D(5.48 μm), E(5.00 μm) and F(5.10 μm) in Fig. 4(a); (d) shows the electric field distribution of A(14.44 μm), B(14.47 μm), C(14.51 μm), D(14.56 μm), E(13.06 μm) and F(13.33 μm) in Fig. 4(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Fig. 4. Transmission spectrua under π-cascade structure of phosphorene, Note: (a) and (b) indicate the transmission spectra when d3 is 10 nm, 20 nm, 30nm and 40 nm, respectively. The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.44 μm), B(5.46 μm), C(5.47 μm), D(5.48 μm), E(5.00 μm) and F(5.10 μm) in Fig. 4(a); (d) shows the electric field distribution of A(14.44 μm), B(14.47 μm), C(14.51 μm), D(14.56 μm), E(13.06 μm) and F(13.33 μm) in Fig. 4(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Transmission spectra under compact π-structure of phosphorene Note: (a) and (b) indicate the transmission spectra when d4 is 0 nm, 5nm, 10 nm and 20 nm, respectively.The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.35 μm), B(5.31 μm), C(5.44 μm), D(5.51 μm), E(4.85 μm) and F(5.88 μm) in fig. 5(a); (d) shows the electric field distribution of A(14.23 μm), B(13.84 μm), C(14.62 μm), D(14.68 μm), E(12.96 μm) and F(15.68 μm) in Figure 5(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Fig. 5. Transmission spectra under compact π-structure of phosphorene Note: (a) and (b) indicate the transmission spectra when d4 is 0 nm, 5nm, 10 nm and 20 nm, respectively.The system is illuminated normally by x-polarization plane wave and the geometric parameters are chosen as: l1 = l2 = 50 nm, w1 = w2 = 10 nm, d1 = 10 nm, d2 = 30 nm, the thickness of phosphorene is 10 nm, p = 220 nm, ɛ1 = ɛ2 =1; (a) and (b) are transmission spectra in x direction and y direction respectively; (c) shows the electric field distribution of A(5.35 μm), B(5.31 μm), C(5.44 μm), D(5.51 μm), E(4.85 μm) and F(5.88 μm) in fig. 5(a); (d) shows the electric field distribution of A(14.23 μm), B(13.84 μm), C(14.62 μm), D(14.68 μm), E(12.96 μm) and F(15.68 μm) in Figure 5(b); The electric field distribution diagram is observed in the x-y plane, and the unit is V/m.
    Relationship between Fermi level and the position of transparent window under compact compact π-structure of phosphorene (a) the X direction, (b) the Y direction
    Fig. 6. Relationship between Fermi level and the position of transparent window under compact compact π-structure of phosphorene (a) the X direction, (b) the Y direction
    Relationship between incident light with different polarization angles and transmission under compact π-structure of phosphorene (a) is in the X direction, (b) is in the Y direction
    Fig. 7. Relationship between incident light with different polarization angles and transmission under compact π-structure of phosphorene (a) is in the X direction, (b) is in the Y direction
    物理参量计算公式参考文献
    外加栅压Vgate=EF+entox30
    等离子体共振频率ωpj2=ne2/ε0mjt31-32
    等离子体碰撞频率ωcj=1/τ29
    载流子浓度n=π2-1mxmy0.5kBTln1+expEF/kBT11
    弛豫时间τj=μmj/e29
    相对介电常数ε=5.7629
    载流子迁移率μ=1 000 cm2/Vs33
    有效质量mx=0.17m0my=1.12m011
    电子质量m0=9.1e-13 kg11
    费米能级EF30
    基本电荷e=1.6e-19C30
    介质间隔层厚度tox30
    Table 1. Physical parameters and their sources
    结构X方向Y方向
    Dip 1Dip 2Dip 1Dip 2
    单π结构0.189 μm0.165 μm0.135 μm0.219 μm
    反向级联的π型结构0.167 μm0.165 μm0.175 μm0.226 μm
    同向级联的π型结构0.165 μm0.148 μm0.168 μm0.218 μm
    Table 2. Half width under different structures
    Ding-Yang XU, Li HAN, Huai-Zhong XING, Jun-Hao CHU. Plasmon-induced transparency in π-cascade structure of phosphorene[J]. Journal of Infrared and Millimeter Waves, 2021, 40(4): 561
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