Simultaneous measurement of hydrogen and methane based on PCF-SPR structure with compound film-coated side-holes

Liu, Hai; Wang, Meng; Wang, Qing; Li, Hongwei; Ding, Yi; Zhu, Chenghao

doi:10.1016/j.yofte.2018.05.007

Cited by 67 publications

(33 citation statements)

References 22 publications

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“…In the presence of the gases, a wavelength shift at the SPR frequency was observed. The proposed sensor had a sensitivity of −1.99 nm/% for methane and −0.19 nm/% for hydrogen without any interferences [89]. To conclude this section, in [88], the usability, advantages and limitations of SC and HC-PCF for gas sensing in the NIR were discussed.…”

Section: Mof Gas Sensors Based On Of Effective Refractive Index Variamentioning

confidence: 97%

“…In the presence of the gases, a wavelength shift at the SPR frequency was observed. The proposed sensor had a sensitivity of −1.99 nm/% for methane and −0.19 nm/% for hydrogen without any interferences [89]. In [90], a MZ interferometer based on a slotted SC-PCF was developed for measurements of refractive index variations.…”

Section: Mof Gas Sensors Based On Of Effective Refractive Index Variamentioning

confidence: 99%

Section: Gas Sensors Based On Mofsmentioning

confidence: 99%

“… ( a ) The schematic and cross section of SC-PCF sensor; ( b ) structural parameters and; ( c ) experimental scheme. Reprinted with permission from [ 89 ]. …”

Section: Figurementioning

confidence: 99%

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Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

López-Torres

Elosúa

Arregui

2020

Sensors

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Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches that can take advantage of their specific features. Due to their unique structure based on a certain distribution of air holes, MOFs are especially useful for sensing applications: on one hand, the increased coupling of guided modes into the cladding or the holes enhances significantly the interaction with sensing films deposited there; on the other hand, MOF air holes enhance the direct interaction between the light and the analytes that get into in these cavities. Consequently, the sensitivity when detecting liquids, gasses or volatile organic compounds (VOCs) is significantly improved. This paper is focused on the reported sensors that have been developed with MOFs which are applied to detection of gases and VOCs, highlighting the advantages that this type of fiber offers.

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Section: Mof Gas Sensors Based On Of Effective Refractive Index Variamentioning

confidence: 97%

“…In the presence of the gases, a wavelength shift at the SPR frequency was observed. The proposed sensor had a sensitivity of −1.99 nm/% for methane and −0.19 nm/% for hydrogen without any interferences [89]. In [90], a MZ interferometer based on a slotted SC-PCF was developed for measurements of refractive index variations.…”

Section: Mof Gas Sensors Based On Of Effective Refractive Index Variamentioning

confidence: 99%

Section: Gas Sensors Based On Mofsmentioning

confidence: 99%

“… ( a ) The schematic and cross section of SC-PCF sensor; ( b ) structural parameters and; ( c ) experimental scheme. Reprinted with permission from [ 89 ]. …”

Section: Figurementioning

confidence: 99%

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Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

López-Torres

Elosúa

Arregui

2020

Sensors

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“…Therefore, it is necessary to explore an effective sensing method for the real-time measurement of methane concentration. Many methane-sensing structures have been proposed, including long period fiber grating (LPFG) [6][7][8], modal interference (MI) [9], surface plasmon resonance (SPR) [10], cryptophane-E infiltrated photonic crystal (PC) micro-cavity [11], and optical absorption spectroscopy technology [12]. Although these configurations have their own advantages, most of them are interference-sensitive not only to the methane concentration but also to the temperature.…”

Section: Introductionmentioning

confidence: 99%

High Sensitive Methane Sensor With Temperature Compensation Based on Selectively Liquid-Infiltrated Photonic Crystal Fibers

et al. 2019

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A highly sensitive and temperature-compensated methane sensor based on a liquid-infiltrated photonic crystal fiber (PCF) is proposed. Two bigger holes near the core area are coated with a methane-sensitive compound film, and specific cladding air holes are infiltrated into the liquid material to form new defective channels. The proposed sensor can achieve accurate measurement of methane concentration through temperature compensation. The sensitivity can reach to 20.07 nm/% with a high linearity as the methane concentration is within the range of 0%-3.5% by volume. The proposed methane sensor can not only improve the measurement accuracy, but also reduce the metrical difficulty and simplify the process.

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Optical Fiber‐Based Gas Sensing for Early Warning of Thermal Runaway in Lithium‐Ion Batteries

Chen

Gan

Guo

2023

Advanced Sensor Research

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Owing to constantly increasing energy density and power density, thermal runaway is becoming the most dangerous event in lithium‐ion batteries, while gas sensing can provide the earliest and clearest signals for forewarning the advent of thermal runaway. However, gas‐sensing signals are not included in current battery management systems (BMSs). Especially for the challenging in‐cell sensing, gas sensing demonstrates significant advantages over out‐of‐cell sensing in the aspect of collecting signals precisely and in a timely manner. The integration of gas sensing with batteries is an important and valuable topic. In this review, the necessity and challenge of in‐cell sensing are expounded, the importance and promise of in‐cell gas sensing are highlighted, optical fiber‐based gas sensing technologies for in‐cell applications are summarized, and the engineering issues of integrating sensors with battery system are discussed. The topic of this article deserves more attention and efforts for the development of cell‐level BMSs and safe batteries in future.

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Simultaneous measurement of hydrogen and methane based on PCF-SPR structure with compound film-coated side-holes

Cited by 67 publications

References 22 publications

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

High Sensitive Methane Sensor With Temperature Compensation Based on Selectively Liquid-Infiltrated Photonic Crystal Fibers

Optical Fiber‐Based Gas Sensing for Early Warning of Thermal Runaway in Lithium‐Ion Batteries

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