A novel ultra-low refractive index photonic crystal fiber sensor based on surface plasmon resonance

Guo, Xiaowan; Li, Chaoyang; Cong, Jingyu

doi:10.1016/j.ijleo.2022.170030

Cited by 8 publications

(2 citation statements)

References 31 publications

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“…Guo et al proposed a SPR sensor based on PCF filled with two gold nanowires inside the air hole to excite SPPs, which can achieve a very wide range of RI measurement from 1.21 to 1.49. The maximum spectral sensitivity of the sensor is 5200 nm RIU −1 [9]. Pan et al reported a D-shaped PCF-SPR sensor, in which 31 silver nanowires were arranged on the polished surface regularly.…”

Section: Introductionmentioning

confidence: 99%

Design of a novel D-shaped SPR sensor with high sensitivity based on PCF for ultra-low refractive index detection

Luo,

An,

et al. 2023

Laser Phys.

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In this paper, a novel D-shaped plasmon resonance sensor based on photonic crystal fiber (PCF) is proposed to detect analytical materials with low refractive index. There are three arc-shaped small holes on both upper and lower edges of the fiber core, which can enhance the surface plasmon effect. The operation wavelength of the sensor is from 2243 nm to 2651 nm when its measurable refractive index range is between 1.17 and 1.27. The maximum spectral sensitivity of the sensor can be reached to 20 300 nm RIU−1, and the optimal resolution is 4.93 × 10−6 RIU. In our knowledge, the current literature indicates that when the refractive index is less than 1.3, this is the sensor with the highest spectral sensitivity among the reported low refractive index PCF-surface plasmon resonance sensors.

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Section: Introductionmentioning

confidence: 99%

Design of a novel D-shaped SPR sensor with high sensitivity based on PCF for ultra-low refractive index detection

Luo,

An,

et al. 2023

Laser Phys.

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“…Sensor performance can be evaluated for sensitivity, RI detection range, and manufacturing cost [ 18 , 20 , 21 , 22 , 23 , 24 , 25 ]. At present, a variety of PCF-SPR sensor structures have been reported to improve sensor performance, which can be categorized into two classes [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

SPR Sensor Based on a Concave Photonic Crystal Fiber Structure with MoS2/Au Layers

et al. 2023

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We propose a surface plasmon resonance (SPR) sensor based on the concave photonic crystal fiber (PCF) coated with molybdenum disulfide (MoS2) and Au layers, which can detect the refractive index (RI) of the analyte. The finite element method (FEM) was used to verify our design, and the loss spectra of the fundamental mode are calculated. Compared with the SPR sensor with only a Au layer, the wavelength sensitivity can be improved by from 3700 to 4400 nm/RIU. Our proposed sensor works in near-infrared band and has a wide RI range from 1.19 to 1.40. The influences of the geometrical parameters of PCF and the thicknesses of Au and MoS2 layers on the loss spectra are discussed in detail, and the maximum wavelength sensitivity of 5100 nm/RIU can be achieved. Meanwhile, a high resolution of 1.96 × 10−5 RIU and the largest FOM of 29.143 can be obtained. It is believed that our findings show the sensor’s excellent potential in medical testing, unknown biological detection, environmental monitoring and organic chemical detection.

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Independent measurement of refractive index and temperature using D-gapped dual-channel structure in a photonic crystal fiber

Tian

Li²,

Meng³

2023

Opt Quant Electron

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A novel ultra-low refractive index photonic crystal fiber sensor based on surface plasmon resonance

Cited by 8 publications

References 31 publications

Design of a novel D-shaped SPR sensor with high sensitivity based on PCF for ultra-low refractive index detection

Design of a novel D-shaped SPR sensor with high sensitivity based on PCF for ultra-low refractive index detection

SPR Sensor Based on a Concave Photonic Crystal Fiber Structure with MoS2/Au Layers

Independent measurement of refractive index and temperature using D-gapped dual-channel structure in a photonic crystal fiber

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