A reflective methane concentration sensor based on biconvex cone photonic crystal fiber

Wang, Zimu; Gao, Peng; Liu, Songwei; Chen, Xiuyan

doi:10.1016/j.ijleo.2021.166983

Cited by 11 publications

(6 citation statements)

References 22 publications

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“…This approach is relatively new approach and shows promise. Work has been published using cryptophane E [102][103][104] with a sensor working at ambient temperatures and using cryptophane A has been selected as a methane-sensitive film [105].…”

Section: Methanementioning

confidence: 99%

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A Review: Application and Implementation of Optic Fibre Sensors for Gas Detection

Allsop

Neal

2021

Sensors

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At the present time, there are major concerns regarding global warming and the possible catastrophic influence of greenhouse gases on climate change has spurred the research community to investigate and develop new gas-sensing methods and devices for remote and continuous sensing. Furthermore, there are a myriad of workplaces, such as petrochemical and pharmacological industries, where reliable remote gas tests are needed so that operatives have a safe working environment. The authors have concentrated their efforts on optical fibre sensing of gases, as we became aware of their increasing range of applications. Optical fibre gas sensors are capable of remote sensing, working in various environments, and have the potential to outperform conventional metal oxide semiconductor (MOS) gas sensors. Researchers are studying a number of configurations and mechanisms to detect specific gases and ways to enhance their performances. Evidence is growing that optical fibre gas sensors are superior in a number of ways, and are likely to replace MOS gas sensors in some application areas. All sensors use a transducer to produce chemical selectivity by means of an overlay coating material that yields a binding reaction. A number of different structural designs have been, and are, under investigation. Examples include tilted Bragg gratings and long period gratings embedded in optical fibres, as well as surface plasmon resonance and intra-cavity absorption. The authors believe that a review of optical fibre gas sensing is now timely and appropriate, as it will assist current researchers and encourage research into new photonic methods and techniques.

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Section: Methanementioning

confidence: 99%

“…Concentration levels of 5 to 15% in air are potentially explosive [185]. MOS sensors are electrically based and thus have the potential risk to ignite methane causing optical sensors [99,100,102,104] to have a distinct advantage. Spectroscopic sensors [93] are more lab-based sensors.…”

Section: Comparison Of Performancesmentioning

confidence: 99%

A Review: Application and Implementation of Optic Fibre Sensors for Gas Detection

Allsop

Neal

2021

Sensors

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“…10 The appearance of the photonic bandgap (PBG) in the transmission spectrum through the PC is an important feature. 11 As a result, the PC has been extensively employed in several applications, including optical mirror, 12 narrowband filter, 13 solar cells, 14 sensor, 15,16 optical camouflage, 17 high-efficient reflector, 18 dynamic color display, 19 fluorescence enhancement, 20 and so on.…”

Section: Introductionmentioning

confidence: 99%

One-dimensional photonic crystal-based biosensor for the detection of glucose concentration in human urine

et al. 2023

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A biosensor structure based on a ternary photonic crystal (TPC) containing a defect is designed and simulated. This proposed biosensor detects the concentration of glucose in human urine. Based on the transfer matrix method, we theoretically studied the transmission spectra through the TPC presuming blood samples with different refractive indices (RIs) infiltrated into the defect layer of the proposed structures. By varying the concentration of glucose in the urine, the RI of the urine is changed, which in turn changes the sensor's output response; both transmission response and resonance wavelength are affected. We evaluated average sensitivity (S) for the number of periods at different values N for optimization purposes. Our results show that the biosensor has performance parameters for a period value N ¼ 6. Indeed, a value of 1033 nm of full width at half maximum photonic bandgap can be observed with a S of 965 nm∕RIU. The quality factor is 1892.542 and the figure of merit is 756.86 RIU −1 . The proposed biosensor can be a miniaturized structure with extreme sensitivity in the concentration of glucose detection models © 2023 Society of Photo-Optical Instrumentation Engineers (SPIE)

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“…The occurrence of photonic bandgaps (PHBGs) in the transmission spectra of PHCs is a significant property. [ 8,9 ] Consequently, a PHC has been widely utilized in a variety of applications, including a narrowband filter, [ 10 ] optical mirror, [ 11 ] sensor, [ 12 ] absorber, [ 13 ] optical camouflage, [ 14 ] and polarization manipulating device. [ 15 ] The fabrication of PHCs for the visible and infrared spectra was thought to be well‐matched with its scaling factor from nano‐ to microscales, [ 16 ] which has led to growing interest in optical PHC sensors.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

Srour

Taya

Çolak

et al. 2023

Physica Status Solidi (a)

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For the improvement of daily needs, the use of many chemicals is growing rapidly. Some of these compounds are harmful to human health. Moreover, due to the wide range of applications in industry, it has become necessary to develop rapid and accurate detectors for chemical compounds. Herein, a new chemical photonic structure is theoretically investigated as a detector for isopropanol, ethanol, and acetone. The proposed sensor is based on a 1D ternary photonic crystal and has the structure (Si/Si3N4/SiO2)N/cavity layer/(Si/Si3N4/SiO2)N. The organic chemical compounds are assumed to be separately infiltrated into the cavity layer. The defect layer (DLR) thickness, incident angle, number of unit cells, and the contrast between the high‐ and low‐index layers are varied and the sensitivity and quality factor are found for each case. The sensitivity can be considerably improved by increasing the DLR thickness, angle of incidence, and the contrast between the high‐ and low‐index materials. An extremely high sensitivity (2270.48, 2283.0555, and 2283.75) and quality factor (21.82 × 105, 21.48 × 105 and 21.46 × 105) are obtained for isopropanol, ethanol, and acetone. The results described earlier may pave the way for a practical and useful method of diagnosing chemical compounds.

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A reflective methane concentration sensor based on biconvex cone photonic crystal fiber

Cited by 11 publications

References 22 publications

A Review: Application and Implementation of Optic Fibre Sensors for Gas Detection

A Review: Application and Implementation of Optic Fibre Sensors for Gas Detection

One-dimensional photonic crystal-based biosensor for the detection of glucose concentration in human urine

An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

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