• Acta Photonica Sinica
  • Vol. 52, Issue 4, 0426002 (2023)
Meina SONG, Yiping HUO*, Yunyan WANG, Pengfei CUI..., Tong LIU, Chen ZHAO and Zuxiong LIAO|Show fewer author(s)
Author Affiliations
  • School of Physics and Information Technology, Shaanxi Normal University, Xi′an710062, China
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    DOI: 10.3788/gzxb20235204.0426002 Cite this Article
    Meina SONG, Yiping HUO, Yunyan WANG, Pengfei CUI, Tong LIU, Chen ZHAO, Zuxiong LIAO. A Multi-Fano Channel High Sensitivity MIM Waveguide for Sensing[J]. Acta Photonica Sinica, 2023, 52(4): 0426002 Copy Citation Text show less
    Two-dimensional(2D)structure schematic of the proposed MIM waveguide
    Fig. 1. Two-dimensional(2D)structure schematic of the proposed MIM waveguide
    Transmission spectra of different structures
    Fig. 2. Transmission spectra of different structures
    Magnetic field distribution at different peak positions in the whole system
    Fig. 3. Magnetic field distribution at different peak positions in the whole system
    Influence of coupling distance g and central air path width h on transmission spectrum of the whole system
    Fig. 4. Influence of coupling distance g and central air path width h on transmission spectrum of the whole system
    Influence of side length L of square ring and baffle width d in bus waveguide on transmission spectrum of the whole system
    Fig. 5. Influence of side length L of square ring and baffle width d in bus waveguide on transmission spectrum of the whole system
    Effect of different refractive index n on transmission spectrum of the whole system
    Fig. 6. Effect of different refractive index n on transmission spectrum of the whole system
    Effect of glucose concentration on structure
    Fig. 7. Effect of glucose concentration on structure
    FR14FR26FR3FR4FR5FR6
    L=300 nm

    λres/nm

    S/(nm·RIU-1

    FOM/RIU-1

    1 344

    1 350

    22.7

    1 053

    1 050

    26.6

    L=350 nm

    λres/nm

    S/(nm·RIU-1

    FOM/RIU-1

    1 611

    1 600

    21.9

    1 275

    1 250

    50

    1 028

    1 000

    32.3

    L=400 nm

    λres/nm

    S/(nm·RIU-1

    FOM/RIU-1

    1 884

    1 900

    69.2

    1 494

    1 500

    40

    1 218

    1 200

    57.7

    988

    900

    15.6

    L=450 nm

    λres/nm

    S/(nm·RIU-1

    FOM/RIU-1

    2 174

    2 200

    8.0

    1 716

    1 700

    54

    1 402

    1 400

    47.5

    1 124

    1 100

    157.1

    L=500 nm

    λres/nm

    S/(nm·RIU-1)FOM/RIU-1

    2 472

    2 450

    12.9

    1 942

    1 950

    36

    1 586

    1 550

    47

    1 260

    1 250

    73.5

    947

    950

    21

    L=550 nm

    λres/nm

    S/(nm·RIU-1)FOM/RIU-1

    2 766

    2 750

    15.1

    2 171

    2 200

    32.3

    1 771

    1 750

    38

    1 398

    1 350

    75

    1 051

    1 050

    15.2

    932

    900

    16.7

    L=600 nm

    λres/nm

    S/(nm·RIU-1)FOM/RIU-1

    3 050

    3 000

    21.4

    2 400

    2 500

    50

    1 955

    2 000

    36.4

    1 535

    1 500

    75

    1 170

    1 000

    13.3

    1 015

    1 000

    13.5

    Table 1. Resonance wavelength λres,sensitivity S and FOM of Fano resonance of the whole system at different L
    YearStructureS/(nm·RIU-1FOM/RIU-1Ref.
    2020Two unequal vertical rectangular cavities2 625.8726.0433
    2021A connected-concentricdouble rings resonator2 26056.534
    2021A racetrack ring resonator1 7746135
    2022A U-shaped ring resonator2 02053.1636
    2022A semi-circular resonant cavity57912.4637
    2022A rectangular root and a double-ring with a rectangular cavity2 28076.738
    2022A toroidal cavity with abuilt-in elliptical rin2 22058.739
    A square ring resonator with a central rectangular air path3 028157.14This work
    Table 2. Comparison of sensing performance between the proposed structure and the waveguide structure in recent literature
    Meina SONG, Yiping HUO, Yunyan WANG, Pengfei CUI, Tong LIU, Chen ZHAO, Zuxiong LIAO. A Multi-Fano Channel High Sensitivity MIM Waveguide for Sensing[J]. Acta Photonica Sinica, 2023, 52(4): 0426002
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