A Multi-Fano Channel High Sensitivity MIM Waveguide for Sensing

Meina SONG; Yiping HUO; Yunyan WANG; Pengfei CUI; Tong LIU; Chen ZHAO; Zuxiong LIAO

doi:10.3788/gzxb20235204.0426002

Acta Photonica Sinica, Volume. 52, Issue 4, 0426002(2023)

A Multi-Fano Channel High Sensitivity MIM Waveguide for Sensing

Meina SONG, Yiping HUO^*, Yunyan WANG, Pengfei CUI, Tong LIU, Chen ZHAO, and Zuxiong LIAO

Author Affiliations

School of Physics and Information Technology, Shaanxi Normal University, Xi′an710062, China

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Figures & Tables(9)

Fig. 1. Two-dimensional（2D）structure schematic of the proposed MIM waveguide

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Fig. 2. Transmission spectra of different structures

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Fig. 3. Magnetic field distribution at different peak positions in the whole system

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Fig. 4. Influence of coupling distance g and central air path width h on transmission spectrum of the whole system

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Fig. 5. Influence of side length L of square ring and baffle width d in bus waveguide on transmission spectrum of the whole system

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$Effect of different refractive index n on transmission spectrum of the whole system$

Fig. 6. Effect of different refractive index n on transmission spectrum of the whole system

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Fig. 7. Effect of glucose concentration on structure

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Table 1. Resonance wavelength $λ_{r e s}$ ，sensitivity S and FOM of Fano resonance of the whole system at different L

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Table 1. Resonance wavelength $λ_{r e s}$ ，sensitivity S and FOM of Fano resonance of the whole system at different L

FR1₄

FR2₆

FR3

FR4

FR5

FR6

L=300 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）

FOM/RIU^-1

1 344

1 350

22.7

1 053

1 050

26.6

L=350 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）

FOM/RIU^-1

1 611

1 600

21.9

1 275

1 250

1 028

1 000

32.3

L=400 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）

FOM/RIU^-1

1 884

1 900

69.2

1 494

1 500

1 218

1 200

57.7

988

900

15.6

L=450 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）

FOM/RIU^-1

2 174

2 200

8.0

1 716

1 700

1 402

1 400

47.5

1 124

1 100

157.1

L=500 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）FOM/RIU^-1

2 472

2 450

12.9

1 942

1 950

1 586

1 550

1 260

1 250

73.5

947

950

L=550 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）FOM/RIU^-1

2 766

2 750

15.1

2 171

2 200

32.3

1 771

1 750

1 398

1 350

1 051

1 050

15.2

932

900

16.7

L=600 nm

$λ_{r e s}$ /nm

S/（nm·RIU^-1）FOM/RIU^-1

3 050

3 000

21.4

2 400

2 500

1 955

2 000

36.4

1 535

1 500

1 170

1 000

13.3

1 015

1 000

13.5

Table 2. Comparison of sensing performance between the proposed structure and the waveguide structure in recent literature

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Table 2. Comparison of sensing performance between the proposed structure and the waveguide structure in recent literature

Year	Structure	S/（nm·RIU^-1）	FOM/RIU^-1	Ref.
2020	Two unequal vertical rectangular cavities	2 625.87	26.04	［33］
2021	A connected-concentricdouble rings resonator	2 260	56.5	［34］
2021	A racetrack ring resonator	1 774	61	［35］
2022	A U-shaped ring resonator	2 020	53.16	［36］
2022	A semi-circular resonant cavity	579	12.46	［37］
2022	A rectangular root and a double-ring with a rectangular cavity	2 280	76.7	［38］
2022	A toroidal cavity with abuilt-in elliptical rin	2 220	58.7	［39］
	A square ring resonator with a central rectangular air path	3 028	157.14	This work

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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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Paper Information

Category:

Received: Oct. 8, 2022

Accepted: Jan. 30, 2023

Published Online: Jun. 21, 2023

The Author Email: HUO Yiping (yphuo@snnu.edu.cn)

DOI:10.3788/gzxb20235204.0426002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Resonance wavelength λres，sensitivity S and FOM of Fano resonance of the whole system at different L

Table 1. Resonance wavelength λres，sensitivity S and FOM of Fano resonance of the whole system at different L

Table 2. Comparison of sensing performance between the proposed structure and the waveguide structure in recent literature

Table 2. Comparison of sensing performance between the proposed structure and the waveguide structure in recent literature

Table 1. Resonance wavelength $λ_{r e s}$ ，sensitivity S and FOM of Fano resonance of the whole system at different L

Table 1. Resonance wavelength $λ_{r e s}$ ，sensitivity S and FOM of Fano resonance of the whole system at different L