Design and Sensitivity Improvement of Microstructured-Core Photonic Crystal Fiber Based Sensor for Methane and Hydrogen Fluoride Detection

Mishra, Gyan P.; Kumar, Dharmendra; Chaudhary, Vijay Shanker; Kumar, Santosh

doi:10.1109/jsen.2021.3131694

Cited by 87 publications

(15 citation statements)

References 47 publications

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“…• Sensing: As the first mission, sensors may sense environmental parameters like temperature [81] and pressure [82] (non-molecular sensing), or sense and measure the concentration of certain molecules (biomarkers) in the environment (molecular sensing), such as different gases and chemicals [83], [84]. For molecular sensing, the receiving process of the sensors can be modeled by transparent, absorbing (fully or partially), and reactive receivers [50] (see Table II for different abnormality detection schemes assuming these models).…”

Section: B Sensorsmentioning

confidence: 99%

Abnormality Detection and Localization Schemes Using Molecular Communication Systems: A Survey

et al. 2023

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Abnormality detection and localization (ADL) have been studied widely in wireless sensor networks (WSNs) literature, where the sensors use electromagnetic waves for communication. Molecular communication (MC) has been introduced as an alternative approach for ADL in particular areas such as healthcare, being able to tackle the shortcomings of conventional WSNs, such as invasiveness, bioincompatibility, and high energy consumption. In this paper, we introduce a general framework for MCbased ADL, which consists of multiple tiers for sensing the abnormality and communication between different agents, including the sensors, the fusion center (FC), the gateway (GW), and the external node (e.g., a local cloud), and describe each tier and the agents in this framework. We classify and explain different abnormality recognition methods, the functional units of the sensors, and different sensor features. Further, we describe different types of interfaces required for converting the internal and external signals at the FC and GW. Moreover, we present a unified channel model for the sensing and communication links. We categorize the MC-based abnormality detection schemes based on the sensor mobility, cooperative detection, and cooperative sensing/activation. We also classify the localization approaches based on the sensor mobility and propulsion mechanisms and present a general framework for the externally-controllable localization systems. Finally, we present some challenges and future research directions to realize and develop MC-based systems for ADL. The important challenges in the MC-based systems lie in four main directions as implementation, system design, modeling, and methods, which need considerable attention from multidisciplinary perspectives.

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Section: B Sensorsmentioning

confidence: 99%

Abnormality Detection and Localization Schemes Using Molecular Communication Systems: A Survey

et al. 2023

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“…Quartz optical fiber sensor has been studied for a long time. In 1970, the Corning Company successfully developed low-loss optical fiber, and remarkable achievements have been made in the structural design [ 65 , 66 , 67 ], experimental preparation [ 68 , 69 , 70 , 71 , 72 ], and application [ 73 , 74 , 75 , 76 , 77 ] of the sensor head. However, in order to solve the cross-sensitivity problem of quartz optic fiber sensors, structural modification is required, which leads to the sensor head being brittle and easy to break.…”

Section: The Structure Of Temperature Self-compensating Fiber Spr Sen...mentioning

confidence: 99%

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Zhao

Wang

Han

et al. 2023

Sensors

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The fiber-optic surface plasmon resonance sensor has very promising applications in environmental monitoring, biochemical sensing, and medical diagnosis, due to the superiority of high sensitivity and novel label-free microstructure. However, the influence of ambient temperature is inevitable in practical sensing applications, and even the higher the sensitivity, the greater the influence. Therefore, how to eliminate temperature interference in the sensing process has become one of the hot issues of this research field in recent years, and some accomplishments have been achieved. This paper mainly reviews the research results on temperature self-compensating fiber-optic surface plasmon sensors. Firstly, it introduces the mechanism of a temperature self-compensating fiber-optic surface plasmon resonance sensor. Then, the latest development of temperature self-compensated sensor is reviewed from the perspective of various fiber-optic sensing structures. Finally, this paper discusses the most recent applications and development prospects of temperature self-compensated fiber-optic surface plasmon resonance sensors.

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“…Excellent light guiding characteristics can be achieved through some special structures, such as elliptical [4], hexagonal [5], octagonal [6], spiral [7] and circular cladding [8][9][10]. By controlling the size and spacing of holes, excellent characteristics can be fulfilled, such as strong confinement field [11], improved sensitivity [12], low confinement loss [13], ultra-flattened dispersion [14][15], higher birefringence [16], and enhanced nonlinear effects [17]. Sensors-based PCF with their unique properties brings some new opportunities to the multi-purpose sensors such as pressure sensors [18], refractive index sensors [19], biosensors [20] and chemical sensors [21].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis and Structural Design of Photonic Crystal Fibers for Gas Sensing Applications

Zheng¹,

Liu²

2023

Preprint

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A total internal reflection photonic crystal fiber (PCF) based on hexagonal core is proposed for gas sensing in a specific wavelength range. The higher sensitivity and lower confinement loss were realized by the structure of the proposed PCF consists of two layers with circular holes rotated hexagonally around a core region and six slotted air-hole in the cladding based on numerical analysis. The simulation results show that the enhancement of the relative sensitivity has been done by enhancing the diameter of the hexagonal shape air-hole cladding (d1) and the hexagonal arranged holes around the central solid core (d0) in this design. Also, the confinement loss has been reduced by enhancing the ratio of length to width of slotted holes (l/w) and decreasing the cladding air-hole diameters (d1). As the refractive index increases, the wavelength shifts toward the long wavelength. And in a certain temperature range, the transmission characteristics of the device does not change with the temperature. The results are helpful for designing high performance PCF for gas sensing applications.

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Design and Sensitivity Improvement of Microstructured-Core Photonic Crystal Fiber Based Sensor for Methane and Hydrogen Fluoride Detection

Cited by 87 publications

References 47 publications

Abnormality Detection and Localization Schemes Using Molecular Communication Systems: A Survey

Abnormality Detection and Localization Schemes Using Molecular Communication Systems: A Survey

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Characteristic Analysis and Structural Design of Photonic Crystal Fibers for Gas Sensing Applications

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