Gas Sensor Based on Silicon Nitride Integrated Long Period Grating

Deleau, Clement; Seat, Han Cheng; Surre, F.; Carcenac, F.; Calmon, Pierre-François; Bernal, Olivier D.

doi:10.1109/sensors52175.2022.9967080

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…In addition, Long Period Fiber Grating (LFPG) sensors [14,15], Fabry-Pérot Interferometer (FPI) sensors [16,17], Michelson Interferometer (MI) sensors [18,19], Mach-Zehnder Interferometer (MZI) sensors [20], and others are also mature technologies.…”

Section: The Basic Principle Of Optical Fiber Sensorsmentioning

confidence: 99%

“…Second, through the clever design of the coating layer, the optical fiber sensor can simultaneously detect a variety of target substances, especially to realize the detection of physical quantities or substances that are not sensitive to the optical fiber [23]. The fluorescent In addition, Long Period Fiber Grating (LFPG) sensors [14,15], Fabry-Pérot Interferometer (FPI) sensors [16,17], Michelson Interferometer (MI) sensors [18,19], Mach-Zehnder Interferometer (MZI) sensors [20], and others are also mature technologies.…”

Section: The Basic Principle Of Optical Fiber Sensorsmentioning

confidence: 99%

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Application of Optical Fiber Sensing Technology and Coating Technology in Blood Component Detection and Monitoring

Qu,

Chen,

et al. 2024

Coatings

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The advantages of optical fiber sensors include their miniaturization, strong anti-interference ability, high sensitivity, low cost, and fast response speed. They can be used for in situ detection in harsh environments, making them suitable for a wide range of applications such as blood detection and monitoring. This technology holds great potential for medical diagnosis and health monitoring, opening up new possibilities in the field. Coating technology plays a crucial role in enhancing the sensitivity and stability of optical fiber sensors, ultimately improving their measurement accuracy and reliability. This manuscript expounds the application status and progression of optical fiber sensors in the determination of blood glucose concentrations, blood pH, diverse proteins in blood, and physical properties of blood. The principle of optical fiber sensors and the application of coating technology for detecting varying targets are scrutinized in detail, with particular emphasis on the advantages and limitations of distinct design schemes. The adept amalgamation of optical fiber sensing technology and coating technology amplifies the adaptability of optical fiber sensors in diverse practical scenarios, thereby presenting novel instruments and methodologies for researchers in pertinent fields to augment their advancement and development.

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Section: The Basic Principle Of Optical Fiber Sensorsmentioning

confidence: 99%

Section: The Basic Principle Of Optical Fiber Sensorsmentioning

confidence: 99%

Application of Optical Fiber Sensing Technology and Coating Technology in Blood Component Detection and Monitoring

Qu,

Chen,

et al. 2024

Coatings

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“…Moreover, silicon photonics is gaining attention over silicon electronics in terms of speed, power, and bandwidth, specifically relating to the gas sensing applications as studied in [ 44 ], which investigates different techniques and design approaches, such as the PhC-based gas sensor, dual gas sensors, and trace gas sensors. Apart from these, using the long period gratings (LPG) coupled to a single mode, propagation in the silicon layer is explored in [ 45 ] for the efficient detection of the different concentrations of CO 2 gas using a functional polymer layer of PHMB. Similarly, on-chip optical sensors have vast applications in the field of gas-sensing applications; a detailed study on different perspectives of this topic is investigated in [ 46 ], using group-IV materials for the purpose.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Perfect Absorber Utilizing Polyhexamethylene Biguanide Polymer for Carbon Dioxide Gas Sensing Application

et al. 2023

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In this paper a perfect absorber with a photonic crystal cavity (PhC-cavity) is numerically investigated for carbon dioxide (CO2) gas sensing application. Metallic structures in the form of silver are introduced for harnessing plasmonic effects to achieve perfect absorption. The sensor comprises a PhC-cavity, silver (Ag) stripes, and a host functional material—Polyhexamethylene biguanide polymer—deposited on the surface of the sensor. The PhC-cavity is implemented within the middle of the cell, helping to penetrate the EM waves into the sublayers of the structure. Therefore, corresponding to the concentration of the CO2 gas, as it increases, the refractive index of the host material decreases, causing a blue shift in the resonant wavelength and vice versa of the device. The sensor is used for the detection of 0–524 parts per million (ppm) concentration of the CO2 gas, with a maximum sensitivity of 17.32 pm (pico meter)/ppm achieved for a concentration of 366 ppm with a figure of merit (FOM) of 2.9 RIU−1. The four-layer device presents a straightforward and compact design that can be adopted in various sensing applications by using suitable host functional materials.

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Gas Sensor Based on Silicon Nitride Integrated Long Period Grating

Cited by 2 publications

References 16 publications

Application of Optical Fiber Sensing Technology and Coating Technology in Blood Component Detection and Monitoring

Application of Optical Fiber Sensing Technology and Coating Technology in Blood Component Detection and Monitoring

Plasmonic Perfect Absorber Utilizing Polyhexamethylene Biguanide Polymer for Carbon Dioxide Gas Sensing Application

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