Surface plasmon resonance sensor based on D-shaped photonic crystal fiber with two micro-openings

Zhang, Shuhuan; Li, Jianshe; Li, Shuguang; Liu, Qiang; Wu, Jing; Guo, Ying

doi:10.1088/1361-6463/aace72

Cited by 45 publications

(12 citation statements)

References 25 publications

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“…After getting all the optimized structural parameters, the proposed sensor is tested for the sensing capabilities and the transmission spectra (logarithmic) are obtained for the broad range of the analytes with RI varying from 1.35 to 1.43 as shown in Figure 5. Transmission spectrum of the proposed sensor has been obtained by the following relation [34]…”

Section: Resultsmentioning

confidence: 99%

GeO2 Doped Optical Fiber Plasmonic Sensor for Refractive Index Detection

et al. 2021

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In this article, a D-shaped optical fiber refractive index (RI) sensor based on surface plasmon resonance effect is demonstrated. The gold film is placed at the flat portion of the optical fiber along with the sensing analytes of the different RIs to excite the plasmonic interactions. Sensing properties are investigated by using the finite element method. The maximum sensitivity of the proposed sensor is achieved as high as 20863.20 nm/RIU with the maximum resolution of 4.79 × 10−6 RIU and figure of merit of 308.38 RIU−1 for an analyte with RI 1.43 by optimizing the different parameters of the sensor with maximum phase matching between the core mode and surface plasmon mode. The high sensitivity of the sensor offers a promising approach for the detection of unknown RI analyte in chemical and biological fields in the near-infrared region.

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Section: Resultsmentioning

confidence: 99%

GeO2 Doped Optical Fiber Plasmonic Sensor for Refractive Index Detection

et al. 2021

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“…Δ λ peak represents the change of resonance wavelength and Δ n a represents the change of refractive index of the object to be measured. Wavelength resolution is another important parameter that determines the detection degree of RI change of analyte, which can be determined by the following equation [ 29 ]:

where Δ λ min represents the wavelength resolution and can be set to 0.1 nm.…”

Section: Model Structure and Production Potentialmentioning

confidence: 99%

A D-Shaped Photonic Crystal Fiber Refractive Index Sensor Coated with Graphene and Zinc Oxide

Han

Shen

Feng

et al. 2020

Sensors

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A surface plasmon resonance (SPR) sensor based on a D-shaped photonic crystal fiber (PCF) with an uncomplicated structure is proposed to detect the change of refractive index of liquid analytes, and numerical simulation is carried out by the finite element method (FEM). Using silver as the plasmonic metal, the performances of the SPR-PCF sensor coated with a graphene layer and zinc oxide (ZnO) layer were assessed. The sensor designed is only coated with material on the polished surface, which makes the sensor production uncomplicated and solves the problems of filling material in the hole and coating on the hole wall. The effects of structural parameters such as graphene layer thickness, silver layer thickness, ZnO thickness, lattice spacing and manufacturing tolerance of blowhole diameter on the sensor performance were numerically simulated. The numerical results show that the sensitivity of the SPR-PCF sensor coated with 25 nm ZnO is highest in the ZnO thickness range from 10 to 25 nm. In the refractive index range of 1.37–1.41 for liquid analyte, the maximum sensitivity and corresponding resolution reach 6000 nm/RIU and 1.667 × 10−5, respectively. In addition, the sensor has good stability and high structural tolerance under the tolerance of ±5% of blowhole diameter. This work has wide application value in the detection of biochemical analytes, water pollution monitoring, food quality, and medical diagnosis.

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“…Where ⇀ R is the lattice constant of the photonic crystal. If we use Equations (18) and (12) to make the following analogy [17][18][19]…”

Section: Analysis Of Photonic Bandgap Theory For Bragg Fiber With Higmentioning

confidence: 99%

Research on the Theory of Optical Transmission for Bragg Fiber With High-Index-Core

Liu

2020

Front. Phys.

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Surface plasmon resonance sensor based on D-shaped photonic crystal fiber with two micro-openings

Cited by 45 publications

References 25 publications

GeO2 Doped Optical Fiber Plasmonic Sensor for Refractive Index Detection

GeO2 Doped Optical Fiber Plasmonic Sensor for Refractive Index Detection

A D-Shaped Photonic Crystal Fiber Refractive Index Sensor Coated with Graphene and Zinc Oxide

Research on the Theory of Optical Transmission for Bragg Fiber With High-Index-Core

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