Improving Temperature-Sensing Performance of Photonic Crystal Fiber via External Metal-Coated Trapezoidal-Shaped Surface

Chao, Chung-Ting Chou; Chen, Sy-Hann; Huang, Hung Ji; Kooh, Muhammad Raziq Rahimi; Lim, Chee Ming; Thotagamuge, Roshan; Mahadi, Abdul Hanif; Chau, Yuan-Fong Chou

doi:10.3390/cryst13050813

Cited by 17 publications

(7 citation statements)

References 77 publications

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“…These plasmonic structures interact with the evanescent field of light propagating through the fibre, allowing the detection of analytes or changes in the surrounding environment [ 83 ]. Another highly sensitive temperature sensor is proposed based on PCF utilizing a flat metal-coated trapezoidal surface, as shown in Figure 5 b [ 104 ]. A polished trapezoidal surface and two layers of elliptical air holes make up the PCF, which enables temperature detection.…”

Section: Most Widely Employed Optical Fibre Configurations In Sensing...mentioning

confidence: 99%

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Optical Fibre-Based Sensors—An Assessment of Current Innovations

Khonina,

Kazanskiy,

Butt

2023

Biosensors

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Optical fibre sensors are an essential subset of optical fibre technology, designed specifically for sensing and measuring several physical parameters. These sensors offer unique advantages over traditional sensors, making them gradually more valuable in a wide range of applications. They can detect extremely small variations in the physical parameters they are designed to measure, such as analytes in the case of biosensing. This high sensitivity allows them to detect subtle variations in temperature, pressure, strain, the refractive index of analytes, vibration, and other environmental factors with exceptional accuracy. Moreover, these sensors enable remote sensing capabilities. Since light signals are used to carry information, the sensing elements can be placed at distant or inaccessible sites and still communicate the data back to the central monitoring system without signal degradation. In recent times, different attractive configurations and approaches have been proposed to enhance the sensitivity of the optical fibre-based sensor and are briefly explained in this review. However, we believe that the choice of optical fibre sensor configuration should be designated based on the specific application. As these sensors continue to evolve and improve, they will play an increasingly vital role in critical monitoring and control applications across various industries.

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Section: Most Widely Employed Optical Fibre Configurations In Sensing...mentioning

confidence: 99%

“… PhC-based sensor for ( a ) the detection of underwater temperature and salinity [ 102 ], ( b ) enhanced temperature sensing [ 104 ], ( c ) cancer detection [ 105 ], and ( d ) blood component sensing [ 106 ]. …”

Section: Most Widely Employed Optical Fibre Configurations In Sensing...mentioning

confidence: 99%

Optical Fibre-Based Sensors—An Assessment of Current Innovations

Khonina,

Kazanskiy,

Butt

2023

Biosensors

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“…It can be used in environmental monitoring [22], new drug development [23], food science [24], and biology [25]. SPR sensors are sensitive to refractive index changes on surfaces, which allows the dynamic monitoring of biomolecular interactions [26][27][28][29][30]. SPR sensors can be broadly classified as fiber-optic, prism-coupled, grating, and integrated optical waveguide types.…”

Section: Introductionmentioning

confidence: 99%

Efficient Sequential Detection of Two Antibiotics Using a Fiber-Optic Surface Plasmon Resonance Sensor

Zhao,

Yin,

Xiao

et al. 2024

Sensors

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Antibiotic residues have become a worldwide public safety issue. It is vital to detect multiple antibiotics simultaneously using sensors. A new and efficient method is proposed for the combined detection of two antibiotics (enrofloxacin (Enro) and ciprofloxacin (Cip)) in milk using surface plasmon resonance (SPR) sensors. Based on the principle of immunosuppression, two antibiotic antigens (for Enro and Cip) were immobilized on an optical fiber surface with conjugates of bovine serum albumin using dopamine (DA) polymerization. Each single antigen was bound to its corresponding antibody to derive standard curves for Enro and Cip. The fiber-optic sensor’s sensitivity was 2900 nm/RIU. Detection limits were calculated to be 1.20 ng/mL for Enro and 0.81 ng/mL for Cip. The actual system’s recovery rate was obtained by testing Enro and Cip in milk samples; enrofloxacin’s and ciprofloxacin’s mean recoveries from the milk samples were 96.46–120.46% and 96.74–126.9%, respectively. In addition, several different regeneration solutions were tested to analyze the two target analytes’ regeneration ability; NaOH and Gly-HCl solutions were found to have the best regeneration ability.

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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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Improving Temperature-Sensing Performance of Photonic Crystal Fiber via External Metal-Coated Trapezoidal-Shaped Surface

Cited by 17 publications

References 77 publications

Optical Fibre-Based Sensors—An Assessment of Current Innovations

Optical Fibre-Based Sensors—An Assessment of Current Innovations

Efficient Sequential Detection of Two Antibiotics Using a Fiber-Optic Surface Plasmon Resonance Sensor

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

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